1.
Writing
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Writing is a medium of human communication that represents language and emotion through the inscription or recording of signs and symbols. In most languages, writing is a complement to speech or spoken language, Writing is not a language but a form of technology that developed as tools developed with human society. Within a language system, writing relies on many of the structures as speech, such as vocabulary, grammar and semantics. The result of writing is called text, and the recipient of text is called a reader. Motivations for writing include publication, storytelling, correspondence and diary, Writing has been instrumental in keeping history, maintaining culture, dissemination of knowledge through the media and the formation of legal systems. As human societies emerged, the development of writing was driven by pragmatic exigencies such as exchanging information, maintaining financial accounts, codifying laws, in both ancient Egypt and Mesoamerica writing may have evolved through calendrics and a political necessity for recording historical and environmental events. H. G. Wells argued that writing has the ability to put agreements, laws and it made the growth of states larger than the old city states possible. It made a continuous historical consciousness possible, the command of the priest or king and his seal could go far beyond his sight and voice and could survive his death. The major writing systems—methods of inscription—broadly fall into four categories, logographic, syllabic, alphabetic, another category, ideographic, has never been developed sufficiently to represent language. A sixth category, pictographic, is insufficient to represent language on its own, a logogram is a written character which represents a word or morpheme. A vast number of logograms are needed to write Chinese characters, cuneiform, and Mayan, where a glyph may stand for a morpheme, many logograms have an ideographic component. For example, in Mayan, the glyph for fin, pronounced ka, was used to represent the syllable ka whenever the pronunciation of a logogram needed to be indicated. In Chinese, about 90% of characters are compounds of an element called a radical with an existing character to indicate the pronunciation. However, such phonetic elements complement the elements, rather than vice versa. A syllabary is a set of symbols that represent syllables. A glyph in a syllabary typically represents a consonant followed by a vowel, or just a vowel alone, phonetically related syllables are not so indicated in the script. For instance, the syllable ka may look nothing like the syllable ki, syllabaries are best suited to languages with a relatively simple syllable structure, such as Japanese. Other languages that use syllabic writing include the Linear B script for Mycenaean Greek, Cherokee, Ndjuka, an English-based creole language of Surinam, most logographic systems have a strong syllabic component
2.
Sound recording and reproduction
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Sound recording and reproduction is an electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording, prior to the development of analog recording, there were mechanical systems for reproducing instrumental music, such as wind-up music boxes and later, in the late 19th century, player pianos. Analog sound reproduction is the process, with a bigger loudspeaker diaphragm causing changes to atmospheric pressure to form acoustic sound waves. Digital recording and reproduction converts the sound signal picked up by the microphone to a digital form by the process of digitization. This lets the audio data be stored and transmitted by a variety of media. Whereas successive copies of an analog recording tend to degrade in quality, as noise is added. A digital audio signal must be reconverted to analog form during playback before it is amplified and connected to a loudspeaker to produce sound, long before sound was first recorded on cylinders or records, music was recorded—first by written music notation, then also by mechanical devices. Fowler, this. cylinder with raised pins on the surface remained the device to produce and reproduce music mechanically until the second half of the nineteenth century. The Banu Musa brothers also invented an automatic flute player, which appears to have been the first programmable machine, according to Fowler, the automata were a robot band that performed. more than fifty facial and body actions during each musical selection. In the 14th century, Flanders introduced a mechanical bell-ringer controlled by a rotating cylinder, similar designs appeared in barrel organs, musical clocks, barrel pianos, and musical boxes. A music box is a musical instrument that produces sounds by the use of a set of pins placed on a revolving cylinder or disc so as to pluck the tuned teeth of a steel comb. They were developed from musical snuff boxes of the 18th century, some of the more complex boxes also have a tiny drum and/or bells, in addition to the metal comb. The fairground organ, developed in 1892, used a system of accordion-folded punched cardboard books, the player piano, first demonstrated in 1876, used a punched paper scroll that could store an long piece of music. The most sophisticated of the rolls were hand-played, meaning that the roll represented the actual performance of an individual. This technology to record a live performance onto a piano roll was not developed until 1904, piano rolls were in continuous mass production from 1896 to 2008. A1908 U. S. Supreme Court copyright case noted that, in 1902 alone, the use of piano rolls began to decline in the 1920s although one type is still being made today. The first device that could record actual sounds as they passed through the air was the phonautograph, the earliest known recordings of the human voice are phonautograph recordings, called phonautograms, made in 1857. They consist of sheets of paper with sound-wave-modulated white lines created by a stylus that cut through a coating of soot as the paper was passed under it
3.
Image
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Images may be two-dimensional, such as a photograph or screen display, or three-dimensional, such as a statue or hologram. They may be captured by optical devices – such as cameras, mirrors, lenses, telescopes, microscopes, etc. and natural objects and phenomena, such as the human eye or water. The word image is used in the broader sense of any two-dimensional figure such as a map, a graph. A volatile image is one that only for a short period of time. This may be a reflection of an object by a mirror, a fixed image, also called a hard copy, is one that has been recorded on a material object, such as paper or textile by photography or any other digital process. A mental image exists in a mind, as something one remembers or imagines. The subject of an image need not be real, it may be a concept, such as a graph, function. For example, Sigmund Freud claimed to have dreamed purely in aural-images of dialogs, a still image is a single static image, as distinguished from a kinetic image. This phrase is used in photography, visual media and the industry to emphasize that one is not talking about movies. A film still is a taken on the set of a movie or television program during production. In literature, imagery is a picture which appeals to the senses. It can both be figurative and literal, a moving image is typically a movie or video, including digital video. It could also be an animated display such as a zoetrope, library of Congress – Format Descriptions for Still Images Image Processing – Online Open Research Group Legal Issues Regarding Images Image Copyright Case
4.
Animation
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Animation is the process of making the illusion of motion and the illusion of change by means of the rapid display of a sequence of images that minimally differ from each other. The illusion—as in motion pictures in general—is thought to rely on the phi phenomenon, animators are artists who specialize in the creation of animation. Animation can be recorded with either analogue media, a book, motion picture film, video tape, digital media, including formats with animated GIF, Flash animation. To display animation, a camera, computer, or projector are used along with new technologies that are produced. Animation creation methods include the traditional animation creation method and those involving stop motion animation of two and three-dimensional objects, paper cutouts, puppets and clay figures, Images are displayed in a rapid succession, usually 24,25,30, or 60 frames per second. Computer animation processes generating animated images with the general term computer-generated imagery, 3D animation uses computer graphics, while 2D animation is used for stylistic, low bandwidth and faster real-time renderings. An earthen goblet discovered at the site of the 5, 200-year-old Shahr-e Sūkhté in southeastern Iran, the artifact bears five sequential images depicting a Persian Desert Ibex jumping up to eat the leaves of a tree. They may, of course, refer to Chinese shadow puppets, in the 19th century, the phenakistoscope, zoetrope and praxinoscope were introduced. A thaumatrope is a toy with a small disk with different pictures on each side. The phenakistoscope was invented simultaneously by Belgian Joseph Plateau and Austrian Simon von Stampfer in 1831, the phenakistoscope consists of a disk with a series of images, drawn on radi evenly space around the center of the disk. John Barnes Linnett patented the first flip book in 1868 as the kineograph, the first animated projection was created in France, by Charles-Émile Reynaud, who was a French science teacher. Reynaud created the Praxinoscope in 1877 and the Théâtre Optique in December 1888, on 28 October 1892, he projected the first animation in public, Pauvre Pierrot, at the Musée Grévin in Paris. This film is notable as the first known instance of film perforations being used. His films were not photographed, they were drawn directly onto the transparent strip, in 1900, more than 500,000 people had attended these screenings. Stuart Blackton, who, because of that, is considered the father of American animation, in Europe, the French artist, Émile Cohl, created the first animated film using what came to be known as traditional animation creation methods - the 1908 Fantasmagorie. The film largely consisted of a figure moving about and encountering all manner of morphing objects. There were also sections of live action in which the hands would enter the scene. The film was created by drawing each frame on paper and then shooting each frame onto negative film, the author of the first puppet-animated film was the Russian-born director Wladyslaw Starewicz, known as Ladislas Starevich
5.
Footage
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More loosely, footage can also refer to all sequences used in film and video editing, such as special effects and archive material. The term then used figuratively to describe moving image material of any kind. Television footage, especially news footage, is traded between television networks, but good footage usually commands a high price. The actual sum depends on duration, age, size of intended audience, duration of licensing, sometimes film projects will also sell or trade footage, usually second unit material not used in the final cut. For example, the end of the cut version of Blade Runner used landscape views that were originally shot for The Shining before the script was modified after shooting had finished. A footage broker is an agent who deals in footage by promoting it to footage purchasers or producers, while taking a profit in the sales transaction
6.
Content format
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A content format is an encoded format for converting a specific type of data to displayable information. Content formats are used in recording and transmission to prepare data for observation or interpretation and this includes both analog and digitized content. Content formats may be recorded and read by either natural or manufactured tools, in addition to converting data to information, a content format may include the encryption and/or scrambling of that information. Multiple content formats may be contained within a section of a storage medium or transmitted via a single channel of a transmission medium. With multimedia, multiple tracks containing multiple content formats are presented simultaneously, content formats may either be recorded in secondary signal processing methods such as a software container format or recorded in the primary format. Observable data is known as raw data, or raw content. There has been a number of content formats throughout history
7.
Information
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In other words, it is the answer to a question of some kind. It is thus related to data and knowledge, as data represents values attributed to parameters, as it regards data, the informations existence is not necessarily coupled to an observer, while in the case of knowledge, the information requires a cognitive observer. At its most fundamental, information is any propagation of cause, Information can be encoded into various forms for transmission and interpretation. It can also be encrypted for safe storage and communication, the uncertainty of an event is measured by its probability of occurrence and is inversely proportional to that. The more uncertain an event, the information is required to resolve uncertainty of that event. The bit is a unit of information, but other units such as the nat may be used. Example, information in one fair coin flip, log2 =1 bit, the concept that information is the message has different meanings in different contexts. The English word was derived from the Latin stem of the nominative. Inform itself comes from the Latin verb informare, which means to give form, eidos can also be associated with thought, proposition, or even concept. The ancient Greek word for information is πληροφορία, which transliterates from πλήρης fully and it literally means fully bears or conveys fully. In modern Greek language the word Πληροφορία is still in use and has the same meaning as the word information in English. In addition to its meaning, the word Πληροφορία as a symbol has deep roots in Aristotles semiotic triangle. In this regard it can be interpreted to communicate information to the one decoding that specific type of sign, from the stance of information theory, information is taken as an ordered sequence of symbols from an alphabet, say an input alphabet χ, and an output alphabet ϒ. Information processing consists of a function that maps any input sequence from χ into an output sequence from ϒ. The mapping may be probabilistic or deterministic and it may have memory or be memoryless. Often information can be viewed as a type of input to an organism or system, inputs are of two kinds, some inputs are important to the function of the organism or system by themselves. In his book Sensory Ecology Dusenbery called these causal inputs, other inputs are important only because they are associated with causal inputs and can be used to predict the occurrence of a causal input at a later time. Some information is important because of association with information but eventually there must be a connection to a causal input
8.
Electronic media
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Electronic media are media that use electronics or electromechanical audience to access the content. This is in contrast to media, which today are most often created electronically. The primary electronic media sources familiar to the public are video recordings, audio recordings, multimedia presentations, slide presentations, CD-ROM. Most new media are in the form of digital media, however, electronic media may be in either analogue electronics data or digital electronic data format. Although the term is associated with content recorded on a storage medium, recordings are not required for live broadcasting. Any equipment used in the communication process may also be considered electronic media. Electronic media are ubiquitous in most of the developed world, electronic media devices have found their way into all parts of modern life. The term is relevant to professional career development regarding related skill set
9.
Mixed media
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Mixed media, in visual art, refers to an artwork in the making of which more than one medium has been employed. There is an important distinction between mixed media artworks and multimedia art, the term multimedia art implies a broader scope than mixed media, combining visual art with non-visual elements or with elements of the other arts. If many different media are used it is important to choose a sturdy foundation upon which the different layers are imposed. Many effects can be achieved by using mixed media, found objects can be used in conjunction with traditional artist media to attain a wide range of self-expression. Some childrens picture books also utilise mixed media illustrations, for example, s Nachts by Wolf Erlbruch. Brommer Open WorldCat pilot, Wright, Michael, Royal Academy of Arts, An introduction to mixed media, ISBN 0-7894-0000-6, ISBN 0-7513-0748-3, OCLC31776510
10.
Fine art
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Historically, the five main fine arts were painting, sculpture, architecture, music and poetry, with performing arts including theatre and dance. Today, the fine arts commonly include additional forms, such as film, photography, video production/editing, design, sequential art, conceptual art, and printmaking. However, in some institutes of learning or in museums, fine art, in that sense, there are conceptual differences between the fine arts and the applied arts. The word fine does not so much denote the quality of the artwork in question and this definition originally excluded the applied or decorative arts, and the products of what were regarded as crafts. According to some writers the concept of a category of fine art is an invention of the early modern period in the West. Larry Shiner in his The Invention of Art, A Cultural History locates the invention in the 18th century, There was a traditional “system of the arts” in the West before the eighteenth century. ”Similar ideas have been expressed by Paul Oskar Kristeller, Pierre Bourdieu, and Terry Eagleton, though the point of invention is often placed earlier, in the Italian Renaissance. The separation of arts and crafts that often exists in Europe, in Japanese aesthetics the activities of everyday life are depicted by integrating not only art with craft but man-made with nature. Traditional Chinese art distinguished within Chinese painting between the mostly landscape painting of scholar gentlemen and the artisans of the schools of court painting. A high status was given to many things that would be seen as craft objects in the West, in particular ceramics, jade carving, weaving. Drawing is a form of expression and is one of the major forms of the visual arts. Common instruments include graphite pencils, pen and ink, inked brushes, wax color pencils, crayons, charcoals, chalk, pastels, markers, stylus, There are a number of subcategories of drawing, including cartooning. Mosaics are images formed with pieces of stone or glass. They can be decorative or functional, an artist who designs and makes mosaics is called a mosaic artist or a mosaicist. Printmaking is the process of making artworks by printing, normally on paper, except in the case of monotyping, the process is capable of producing multiples of the same piece, which is called a print. Each print is considered an original, as opposed to a copy, the reasoning behind this is that the print is not a reproduction of another work of art in a different medium — for instance, a painting — but rather an image designed from inception as a print. An individual print is also referred to as an impression, prints are created from a single original surface, known technically as a matrix. But there are other kinds, discussed below. Multiple nearly identical prints can be called an edition, in modern times each print is often signed and numbered forming a limited edition
11.
Southampton
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Southampton, on the south coast of England, is the largest city in the ceremonial county of Hampshire. It is 75 miles south-west of London and 19 miles north-west of Portsmouth, Southampton is a major port and the closest city to the New Forest. It lies at the northernmost point of Southampton Water at the confluence of the Rivers Test and Itchen, the city, which is a unitary authority, has an estimated population of 253,651. The citys name is abbreviated in writing to Soton or Soton. Significant employers in the city include the University of Southampton, Southampton Solent University, Southampton Airport, Ordnance Survey, BBC South, Southampton has a large shopping centre and retail park, Westquay. In 2014, the city approved a follow-up from the Westquay park, WestQuay Watermark. This built-up area is part of the area known as South Hampshire. With a population of over 1.5 million this makes the one of the United Kingdoms most populous metropolitan areas. Archaeological finds suggest that the area has been inhabited since the stone age, following the Roman invasion of Britain in AD43 and the conquering of the local Britons in 70 AD the fortress settlement of Clausentum was established. It was an important trading port and defensive outpost of Winchester, Clausentum was defended by a wall and two ditches and is thought to have contained a bath house. Clausentum was not abandoned until around 410, the Anglo-Saxons formed a new, larger, settlement across the Itchen centred on what is now the St Marys area of the city. The settlement was known as Hamwic, which evolved into Hamtun, archaeological excavations of this site have uncovered one of the best collections of Saxon artefacts in Europe. It is from this town that the county of Hampshire gets its name, viking raids from 840 onwards contributed to the decline of Hamwic in the 9th century, and by the 10th century a fortified settlement, which became medieval Southampton, had been established. Following the Norman Conquest in 1066, Southampton became the port of transit between the then capital of England, Winchester, and Normandy. By the 13th century Southampton had become a port, particularly involved in the import of French wine in exchange for English cloth. The Franciscan friary in Southampton was founded circa 1233, the friars constructed a water supply system in 1290, which carried water from Conduit Head some 1.7 kilometres to the site of the friary inside the town walls. Further remains can be observed at Conduit House on Commercial Road, the friars granted use of the water to the town in 1310. The town was sacked in 1338 by French, Genoese and Monegasque ships, on visiting Southampton in 1339, Edward III ordered that walls be built to close the town
12.
Variety (magazine)
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Variety is a weekly American entertainment trade magazine and website owned by Penske Media Corporation. The last daily printed edition was put out on March 19,2013, Variety originally reported on theater and vaudeville. Variety has been published since December 16,1905, when it was launched by Sime Silverman as a weekly periodical covering vaudeville with its headquarters in New York City, on January 19,1907, Variety published what is considered the first film review in history. In 1933, Sime Silverman launched Daily Variety, based in Hollywood, Sime Silverman had passed on the editorship of the Weekly Variety to Abel Green as his replacement in 1931, he remained as publisher until his death in 1933 soon after launching the Daily. His son Sidne Silverman, known as Skigie, succeeded him as publisher of both publications, both Sidne and his wife, stage actress Marie Saxon, died of tuberculosis. Their only son Syd Silverman, born 1932, was the heir to what was then Variety Inc. Young Syds legal guardian Harold Erichs oversaw Variety Inc. until 1956, after that date Syd Silverman was publisher of both the Weekly Variety in New York and the Daily Variety in Hollywood, until the sale of both papers in 1987 to the Cahners Corp. In L. A. the Daily was edited by Tom Pryor from 1959 until 1988, for twenty years its editor-in-chief was Peter Bart, originally only of the weekly New York edition, with Michael Silverman running the Daily in Hollywood. Bart had worked previously at Paramount Pictures and The New York Times, in April 2009, Bart moved to the position of vice president and editorial director, characterized online as Boffo No More, Bart Up and Out at Variety. From mid 2009 to 2013, Timothy M. Gray oversaw the publication as Editor-in-Chief, after over 30 years of various reporter, in October 2014, Eller and Wallenstein were upped to Co-Editors in Chief, with Littleton continuing to oversee the trades television coverage. This dissemination comes in the form of columns, news stories, images, video, Cahners Publishing purchased Variety from the Silverman family in 1987. On December 7,1988, Barts predecessor, Roger Watkins, proposed, upon its launch, the new-look Variety measured one inch shorter with a washed-out color on the front. In October 2012, Reed Business Information, the periodicals owner, PMC is the owner of Deadline. com, which since the 2007–2008 Writers Guild of America strike has been considered Varietys largest competitor in online showbiz news. In October,2012, Jay Penske announced that the paywall would come down, the print publication would stay. A significant portion of the advertising revenue comes during the film-award season leading up to the Academy Awards. During this Awards Season, large numbers of colorful, full-page For Your Consideration advertisements inflate the size of Variety to double or triple its usual page count, paid circulation for the weekly Variety magazine in 2013 was 40,000. Each copy of each Variety issue is read by an average of three people, with a total readership of 120,000. Variety. com has 17 million unique monthly visitors, Variety is a weekly entertainment publication with a broad coverage of movies, television, theater, music and technology, written for entertainment executives
13.
Washington Square (composition)
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Washington Square is a popular instrumental from 1963 by the New York City-based jazz group The Village Stompers. It did, however, top the Billboard Easy Listening chart for three weeks that November and made the top 30 on the Billboard R&B chart, in addition, the song was nominated for a Grammy Award in the category Best Instrumental Theme. Other artists have recorded the song, sometimes as a vocal track, in Asia, a South Korean female vocalist band Lee Sisters released a recording of this tune. A Hong Kong artist Sam Hui has also released a recording, another recent adaptation is by a Chinese folk/pop songwriter/singer, Hao Yun, named Married. Washington Square shares the same metre as many hymns, known as 86. 86D or CMD. In the 1970s, some churches were singing hymns such as The Lord Is My Shepherd, list of number-one adult contemporary singles of 1963
14.
Multi-image
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Multi-image productions are also known as multi-image slide presentations, slide shows and diaporamas and are a specific form of multimedia or audio-visual production. One of the hallmarks of multi-image was the use of the wide screen panorama, by cutting and dissolving between images in the projectors, animation effects were created in the panorama format. The term multi-image is sometimes used to describe digital photo image computer programs that combine or change images on-screen, for photo montages, Multi-image presentations were a unique form of communication to audiences of various sizes, to meet a variety of communication and entertainment needs. The use of projected photographic images such as lantern slides for entertainment, others, such as L. Frank Baum had a traveling show that included slides, film, and actors describing the land of Oz. Throughout the years improvements in technology took place and applications for multi-image continued to expand, during the 1960s, automated synchronized audio and slides modules became more common and found use in instructional environments. In general, multi-image can be defined as being, Based largely on analog production tools and technologies including art and audio production, line density for 35mm film is up to 3850 lines per inch, which no video projection technology can match. Multi-disciplinary in terms of the types of skills required to create, venue driven, multi-image presentations had specific requirements for the equipment and spaces they were intended for and presented in. Multi-image as a business thrived during the 1970s and 1980s, creating and presenting multi-image productions involved a relatively large number of specialized skills, equipment, and facilities to produce. A professional organization, the Association for Multi-image International, was created and had active chapters around the world. The AMI held a convention and multi-image competition. Local chapters of AMI in various cities also held regional competitions, an entire industry grew around supplying the tools and equipment needed to supply and support multi-image production. Corporations who manufactured and sold basic equipment and materials used in the production of multi-image, such as 35mm slide projectors, film, slide mounts, soft-edge masks, manufacturers of highly specialized multi-image equipment such as optical slide cameras and slide projector programming hardware. Programmer and camera manufacturers included Audio Visual Labs, Electrosonic, Clearlight Inc, spindler & Sauppe, Marron Carrel and Forox. Digital photography has reduced the need for services and complex equipment. The expansion and ease of use of desktop computing brought a close to the multi-image industry, the art and business of multi-image drew from many older existing technologies. When a multi-image project was initiated, various management roles were required to provide direction, planning. These roles generally involved the activities similar to found in other media industries, such as creative, visual, and technical directors, producers, production managers. Often individuals with the production skills would fill these roles as well as performing their production roles
15.
Educational software
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Educational software is computer software, the primary purpose of which is teaching or self-learning. One such system was the type19 synthetic radar trainer, built in 1943, from these early attempts in the WWII era through the mid-1970s, educational software was directly tied to the hardware, usually mainframe computers, on which it ran. Pioneering educational computer systems in this era included the PLATO system, developed at the University of Illinois, in 1967 Computer Curriculum Corporation was formed to market to schools the materials developed through the IBM partnership. Early terminals that ran educational systems cost over $10,000, Some programming languages from this period, particularly BASIC, and LOGO can also be considered educational, as they were specifically targeted to students and novice computer users. The PLATO IV system, released in 1972, supported many features which became standard in educational software running on home computers. Its features included bitmap graphics, primitive sound generation, and support for non-keyboard input devices, the arrival of the personal computer, with the Altair 8800 in 1975, changed the field of software in general, with specific implications for educational software. Brøderbund and The Learning Company are key companies from this period, and MECC, the Minnesota Educational Computing Consortium and these and other companies designed a range of titles for personal computers, with the bulk of the software initially developed for the Apple II. Major developments in software in the early and mid-1990s were made possible by advances in computer hardware. Multimedia graphics and sound were used in educational programs. CD-ROMs became the method for content delivery with several digital encyclopedias released as Multimedia application CD-ROMs. With the spread of the internet in the half of the 1990s. In the history of learning environments, the 1990s were a time of growth for educational software systems, primarily due to the advent of the affordable computer. Today Higher Education institutions use virtual learning environments like Blackboard Inc. to provide accessibility to learners. Courseware is a term that combines the words course with software and its meaning originally was used to describe additional educational material intended as kits for teachers or trainers or as tutorials for students, usually packaged for use with a computer. The terms meaning and usage has expanded and can refer to the entire course, many companies are using the term to describe the entire package consisting of one class or course bundled together with the various lessons, tests, and other material needed. The courseware itself can be in different formats, some are available online such as html pages. Many forms of technology are now being blended with the term courseware. Most leading educational companies solicit or include courseware with their training packages, Some educational software is designed for use in school classrooms
16.
CD-ROM
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A CD-ROM /ˌsiːˌdiːˈrɒm/ is a pre-pressed optical compact disc which contains data. The name is an acronym which stands for Compact Disc Read-Only Memory, computers can read CD-ROMs, but cannot write to CD-ROMs which are not writable or erasable. From the mid-1990s until the mid-2000s, CD-ROMs were popularly used to distribute software for computers, some CDs, called enhanced CDs, hold both computer data and audio with the latter capable of being played on a CD player, while data is only usable on a computer. An early CD-ROM format was developed by Sony and Denon, introduced at a Japanese computer show in 1984 and it was an extension of Compact Disc Digital Audio, and adapted the format to hold any form of digital data, with a capacity of 540 MiB. The Yellow Book is the standard that defines the format of CD-ROMs. One of a set of books that contain the technical specifications for all CD formats. CD-ROMs are identical in appearance to audio CDs, and data are stored and retrieved in a similar manner. Discs are made from a 1.2 mm thick disc of polycarbonate plastic, data is stored on the disc as a series of microscopic indentations. A laser is shone onto the surface of the disc to read the pattern of pits. This pattern of changing intensity of the beam is converted into binary data. Several formats are used for data stored on discs, known as the Rainbow Books. The Yellow Book, published in 1988, defines the specifications for CD-ROMs, the CD-ROM standard builds on top of the original Red Book CD-DA standard for CD audio. Other standards, such as the White Book for Video CDs, the Yellow Book itself is not freely available, but the standards with the corresponding content can be downloaded for free from ISO or ECMA. There are several standards that define how to structure data files on a CD-ROM, ISO9660 defines the standard file system for a CD-ROM. ISO13490 is an improvement on this standard which adds support for non-sequential write-once and re-writeable discs such as CD-R and CD-RW, as well as multiple sessions. The ISO13346 standard was designed to address most of the shortcomings of ISO9660, and a subset of it evolved into the UDF format, which was adopted for DVDs. The bootable CD specification was issued in January 1995, to make a CD emulate a hard disk or floppy disk, is called El Torito, data stored on CD-ROMs follows the standard CD data encoding techniques described in the Red Book specification. This includes cross-interleaved Reed–Solomon coding, eight-to-fourteen modulation, and the use of pits, the structures used to group data on a CD-ROM are also derived from the Red Book
17.
Video
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Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Video systems vary greatly in the resolution of the display and refresh rate, video can be carried on a variety of media, including radio broadcast, tapes, DVDs, computer files etc. Video was originally exclusively a live technology, charles Ginsburg led an Ampex research team developing one of the first practical video tape recorder. In 1951 the first video tape recorder captured live images from television cameras by converting the electrical impulses. Video recorders were sold for $50,000 in 1956, however, prices gradually dropped over the years, in 1971, Sony began selling videocassette recorder decks and tapes into the consumer market. The use of techniques in video created digital video, which allowed higher quality and, eventually. After the invention of the DVD in 1997 and Blu-ray Disc in 2006, sales of videotape, the advent of digital broadcasting and the subsequent digital television transition is in the process of relegating analog video to the status of a legacy technology in most parts of the world. PAL standards and SECAM specify 25 frame/s, while NTSC standards specify 29.97 frames, film is shot at the slower frame rate of 24 frames per second, which slightly complicates the process of transferring a cinematic motion picture to video. The minimum frame rate to achieve a comfortable illusion of an image is about sixteen frames per second. Video can be interlaced or progressive, analog display devices reproduce each frame in the same way, effectively doubling the frame rate as far as perceptible overall flicker is concerned. NTSC, PAL and SECAM are interlaced formats, abbreviated video resolution specifications often include an i to indicate interlacing. For example, PAL video format is specified as 576i50, where 576 indicates the total number of horizontal scan lines, i indicates interlacing. In progressive scan systems, each refresh period updates all scan lines in each frame in sequence, when displaying a natively progressive broadcast or recorded signal, the result is optimum spatial resolution of both the stationary and moving parts of the image. Deinterlacing cannot, however, produce video quality that is equivalent to true progressive scan source material, aspect ratio describes the dimensions of video screens and video picture elements. All popular video formats are rectilinear, and so can be described by a ratio between width and height, the screen aspect ratio of a traditional television screen is 4,3, or about 1.33,1. High definition televisions use a ratio of 16,9. The aspect ratio of a full 35 mm film frame with soundtrack is 1.375,1. Therefore, a 720 by 480 pixel NTSC DV image displayes with the 4,3 aspect ratio if the pixels are thin, the popularity of viewing video on mobile phones has led to the growth of vertical video
18.
Photography
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Typically, a lens is used to focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed exposure. With an electronic sensor, this produces an electrical charge at each pixel. A negative image on film is used to photographically create a positive image on a paper base, known as a print. The word photography was created from the Greek roots φωτός, genitive of φῶς, light and γραφή representation by means of lines or drawing, several people may have coined the same new term from these roots independently. Johann von Maedler, a Berlin astronomer, is credited in a 1932 German history of photography as having used it in an article published on 25 February 1839 in the German newspaper Vossische Zeitung. Both of these claims are now widely reported but apparently neither has ever been confirmed as beyond reasonable doubt. Credit has traditionally given to Sir John Herschel both for coining the word and for introducing it to the public. Photography is the result of combining several technical discoveries, later Greek mathematicians Aristotle and Euclid also independently described a pinhole camera in the 5th and 4th centuries BCE. Daniele Barbaro described a diaphragm in 1566, wilhelm Homberg described how light darkened some chemicals in 1694. The fiction book Giphantie, published in 1760, by French author Tiphaigne de la Roche, the discovery of the camera obscura that provides an image of a scene dates back to ancient China. Leonardo da Vinci mentions natural camera obscura that are formed by dark caves on the edge of a sunlit valley, a hole in the cave wall will act as a pinhole camera and project a laterally reversed, upside down image on a piece of paper. So the birth of photography was primarily concerned with inventing means to capture, renaissance painters used the camera obscura which, in fact, gives the optical rendering in color that dominates Western Art. The camera obscura literally means dark chamber in Latin and it is a box with a hole in it which allows light to go through and create an image onto the piece of paper. Around the year 1800, British inventor Thomas Wedgwood made the first known attempt to capture the image in a camera obscura by means of a light-sensitive substance and he used paper or white leather treated with silver nitrate. The shadow images eventually darkened all over, the first permanent photoetching was an image produced in 1822 by the French inventor Nicéphore Niépce, but it was destroyed in a later attempt to make prints from it. Niépce was successful again in 1825, in 1826 or 1827, he made the View from the Window at Le Gras, the earliest surviving photograph from nature. Because Niépces camera photographs required a long exposure, he sought to greatly improve his bitumen process or replace it with one that was more practical. With an eye to eventual commercial exploitation, the partners opted for total secrecy, Daguerres efforts culminated in what would later be named the daguerreotype process
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Artistic rendering
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Rendering in visual art and technical drawing means the process of formulating, adding color, shading, and texturing of an image. It can also be used to describe the quality of execution of that process, when used as a means of expression, it is synonymous with illustrating. However, it may be used for visualization of existing data regardless of any preconceived message or idea to express. Rendering is also a technique that can be used while designing packaging and branding, the alternative method to rendering an image is capturing an image such as photography or image scanning. Both rendered and captured images can be mixed, edited, or both, artistic rendering is the application of visual art styles to rendering. For photorealistic rendering styles, the emphasis is on accurate reproduction of light-and-shadow, in computer graphics, interpretive rendering styles are known as non-photorealistic rendering styles, but may be used to simplify technical illustrations. Rendering styles that combine photorealism with non-photorealism are known as hyperrealistic rendering styles, 2D computer graphics 3D computer graphics Graphic art software List of artistic media
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Leda Luss Luyken
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Leda Luss Luyken, née Valata, Greece, is a Greek/American conceptual artist, who lives and works in Germany. Leda Luss-Luyken was educated at the Ecole dHumanité in Switzerland and studied arts and architecture in Zurich, New York, during that time she was particularly influenced by the works of Frank Lloyd Wright, Mies van der Rohe and Richard Neutra as well as Japanese garden architecture. She then began her career as an architectural designer and interior architect in New York, working intensively with designs by Charles Eames, Herman Miller. Drawing on this experience, Leda Luss Luyken has been working since 1983 as a conceptual artist in England, Germany and she received painting tutorials from Alfred de Vivanco, a pupil of Emil Nolde and is regularly being coached by Gisela Sellenriek. This is a body of work ranging from life drawing to expressive figurative paintings depicting personifications of the condition humaine and they were shown in two major solo shows in Amsterdam and are documented in a monograph. ModulArt is Leda Luss Luykens conceptual innovation, a new way of motion in painting, Luss Luyken has produced cycles of paintings using this innovative technique, Millennium, Greek Spirit, Genesis, 96% Dark Matter, Cosmos Sensual. Each of these cycles comprises approximately 20 large scale paintings measuring 180,180 cm or more, in terms of contemporary art, ModulArt belongs to the category of conceptual art. It is not so much the finished painting but its openness to change, the painters sujets are open to their de- and reconstruction into new, modulated images. To do so, the artist lets go of her work, the viewer thus becomes an active user of art. Modulated images open up new perspectives and insights on the subject, such further development of a ModulArt painting is open-source and can be done any time in nearly unlimited variations. Luss Luykens ModulArt coincides and was developed independently during the period of time with Stefano Vagninis ModulArt in the realm of musical composition. Both hold that the tools to creativity are virtually unlimited by way of ModulArt. Luss-Luykens ModulArt was publicly exhibited in museums in Leipzig, Munich, Berlin and Weimar as well as in solo shows in galleries in Amsterdam, Berlin. Luss Luykens ModulArt is documented in a catalogue, a monograph, riceArt is multimedia work on transparent rice paper. Using this medium, Leda Luss Luyken has produced the series of paintings, The Aphrodite Series, The Nike Series, The Garden of Eden Series. Each of these consists of between 20 and 30 works, mostly on Indian or Chinese rice paper and in some cases using a combination on both, many of the themes are drawn from ancient mythology and Luss Luyken transposes their essence into modernity. K
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Modular art
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Modular art is art created by joining together standardized units to form larger, more complex compositions. In some works the units can be moved, removed and added to – that is, modulated – to create a new work of art. Jean Tinguelys efforts to create a self-destructive art machine constitute perhaps the ultimate expression of arts mutability, victor Vasarely postulated in his Manifest Jaune in 1955 in Paris that works of art should feature the properties of being multiplicable and repeatable in series. Modularity enters the modern artistic repertory largely through the disciplines of industrial design, belgian architect Louis Herman De Koninck led a team of countrymen in creating one of the first modular product systems in their Cubex kitchen series of 1932. The series consisted of standardized and industrially produced components that could be combined and arrayed in limitless combinations to accommodate almost any size kitchen and his Executive Office Group line, launched in 1942, was a similarly ground-breaking systems approach to office furniture. In 1950 Herman Miller brought out the EAS Storage Unit series by Charles and Ray Eames, the module enjoys a long history in the realm of architecture. In antiquity architects utilized the module primarily as a unit of measurement guiding the proportions of plan, architects of the Renaissance perpetuated the Vitruvian system in their resurrection of the classical orders, a tradition which continues to the present day. Among modern architects, the module is frequently employed as a design, Architecture and modular sculpture intersected starting in the 1950s in the work of Norman Carlberg, Erwin Hauer and Malcolm Leland. All three received commissions to design perforated architectural screens built out of repetitive modular motives cast in concrete, non-structural, the screens were used on building exteriors to divide space, filter light and create visual interest. Their work has come to be described as Modular Constructivism, reflecting both its methodology and its architectural context. Each created stand-alone modular-themed sculptures into the 1960s and after as well, rauschenberg explored this theme that same year in a three- and seven-panel format, the linear array of rectangular panels in these versions suggests their potentially infinite replication. The cool abstraction of these canvases presages the emergence of modularity as a topic of Minimalist art in the 1960s. Tony Smith, Sol LeWitt, Dan Flavin and Donald Judd are among this schools most prolific exponents during the period. In particular, the work of Smith is key to understanding the transformation of modularity from a compositional, Smith began his career as an architectural designer. To further his education he apprenticed himself on some projects by Frank Lloyd Wright for a couple of starting in 1938. In the case of Wright, the interest in design also may have derived from his familiarity with modular practice in traditional Japanese architecture. Wrights Hanna House of 1937 is an example of the masters facility with modern modular design in multiple dimensions. Its striking angled forms are built up from the individual hexagonal modules that define the floor plan, not surprisingly, this project is sometimes referred to as the Honeycomb House
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Performing arts
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Performing arts are a form of art in which artists use their voices and/or their bodies, often in relation to other objects, to convey artistic expression. It is different from visual arts, which is when artists use paint/canvas or various materials to create physical or static art objects, performing arts include several disciplines, each performed in front of a live audience. Artists who participate in performing arts in front of an audience are called performers, examples of these include actors, comedians, dancers, magicians, circus artists, musicians, and singers. Performing arts are supported by workers in related fields, such as songwriting, choreography. A performer who excels in acting, singing, and dancing is commonly referred to as a triple threat, well-known examples of historical triple threat artists include Gene Kelly, Fred Astaire, and Judy Garland. Performers often adapt their appearance, such as costumes and stage makeup, stage lighting. Performing arts may include dance, music, opera, theatre and musical theatre, magic, illusion, mime, spoken word, puppetry, circus arts, performance art, recitation and public speaking. There is also a form of fine art, in which the artists perform their work live to an audience. Most performance art also involves some form of art, perhaps in the creation of props. Dance was often referred to as an art during the Modern dance era. Theatre is the branch of performing arts, concerned with acting out stories in front of an audience, using a combination of speech, gesture, music, dance, sound, any one or more of these elements is performing arts. In addition to the standard narrative style of plays. In the context of performing arts, dance generally refers to movement, typically rhythmic and to music. Definitions of what constitutes dance are dependent on social, cultural, aesthetic artistic and moral constraints and range from functional movement to codified, in dance, the connection between the two concepts is stronger than in some other arts, and neither can exist without the other. Choreography is the art of making dances, and the person who practices this art is called a choreographer, music is an art form which combines pitch, rhythm, and dynamic in order to create sound. It can be performed using a variety of instruments and styles and is divided into genres, as an art form, music can occur in live or recorded formats, and can be planned or improvised. Starting in the 6th century BC, the Classical period of performing art began in Greece and these poets wrote plays which, in some cases, incorporated dance. The Hellenistic period began the use of comedy
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Theatrical property
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A prop, formally known as property, is an object used on stage or on screen by actors during a performance or screen production. In practical terms, a prop is considered to be anything movable or portable on a stage or a set, distinct from the actors, scenery, costumes, consumable food items appearing in the production are also considered props. The earliest known use of the properties in English to refer to stage accessories is in the 1425 CE Morality play. The Oxford English Dictionary finds the first usage of props in 1841, during the Renaissance in Europe, small acting troupes functioned as cooperatives, pooling resources and dividing any income. Many performers provided their own costumes, but special items—stage weapons, furniture or other hand-held devices—were considered company property, some experts however seem to think that the term comes from the idea that stage or screen objects belong to whoever uses them on stage. There is no difference between props in different media, such as theatre, film, or television, bland Wade, a properties director, says, A coffee cup onstage is a coffee cup on television, is a coffee cup on the big screen. He adds, There are definitely different responsibilities and different vocabulary, the term theatrical property originated to describe an object used in a stage play and similar entertainments to further the action. Technically, a prop is any object that gives the scenery, actors, or performance space specific period, place, props in a production originate from off stage unless they have been preset on the stage before the production begins. Props are stored on a prop table backstage near the entrance during production then generally locked in a storage area between performances. The term has readily transferred to television, motion picture and video game production, in recent years, the increasing popularity of movie memorabilia has added new meaning to the term prop, broadening its existence to include a valuable after-life as a prized collectors item. Typically not available until after a premiere, movie props appearing on-screen are called screen-used. However, a prop must read well from the house or on-screen, in some cases, a prop is designed to behave differently from how the real object would, often for the sake of safety. A mop, representing a string mop, but built out of a shape covered with fabric. A prop weapon that reads well but lacks the intentional harmfulness of the real weapon. In the theater, prop weapons are almost always either non-operable replicas, guns fire caps or noisy blanks, swords are dulled, and knives are often made of plastic or rubber. In film production, fully functional weapons are used. Real cartridges with bullets removed are still dangerously charged which has caused several instances when used on stage or film. The safety and proper handling of weapons used as movie props is the premiere responsibility of the prop master
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Stage (theatre)
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In theatre and performing arts, the stage is a designated space for the performance of productions. The stage serves as a space for actors or performers and a point for the members of the audience. As an architectural feature, the stage may consist of a platform or series of platforms, in some cases, these may be temporary or adjustable but in theaters and other buildings devoted to such productions, the stage is often a permanent feature. There are several types of stages that vary as to the usage, the most common form found in the West is the proscenium stage. In this type, the audience is located on one side of the stage with the remaining sides hidden and used by the performers and technicians. Thrust stages may be similar to proscenium stages but with a platform or performance area that extends into the space so that the audience is located on three sides. In theatre in the round, the audience is located on all four sides of the stage, the fourth type of stage incorporates created and found stages which may be constructed specifically for a performance or may involve a space that is adapted as a stage. Since the Italian Renaissance, the most common used in the West has been the proscenium stage which may also be referred to as a picture frame stage. The primary feature is an opening known as the proscenium arch through which the audience views the performance. The audience directly faces the stage—which is typically raised several feet above front row audience level—and views only one side of the scene and this one side is commonly known as the invisible fourth wall of the scene. The proscenium arch evolved from the proskenium in Ancient Greek theaters and this was the space in front of the skênê or backdrop where the actors actually played. Stage floors were raked upward slightly from front to back in order to contribute to the illusion and also to make actors more visible to audiences. Subsequently, audience seating was raked, and balconies were added to give audiences a fuller view, by the end of the 19th century most stages had level floors, and much of the audience looked down on, rather than up to, the stage. The competition among royals to produce elegant and elaborate entertainments fueled and financed the expansion of European court theatres, the proscenium—which often was extremely decorative in the manner of a triumphal arch—framed the prospective picture. A wood grid above the stage supported pulleys from which wooden battens, the weight of heavy pieces was counterbalanced by sandbags. This system required the creation of a stage house or loft that was usually as high or higher than the proscenium itself. Theatres using these systems, which are manually operated by stage hands, are known as hemp houses. They have been supplanted by counterweight fly systems
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Projector
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A projector or image projector is an optical device that projects an image onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a transparent lens. A virtual retinal display, or retinal projector, is a projector that projects an image directly on the retina instead of using a projection screen. The most common type of projector used today is called a video projector. Video projectors are digital replacements for earlier types of such as slide projectors. These earlier types of projectors were replaced with digital video projectors throughout the 1990s and early 2000s. The newest types of projectors are handheld projectors that use lasers or LEDs to project images and their projections are hard to see if there is too much ambient light. Movie theaters used a type of projector called a movie projector, spectators not always provided the details needed to differentiate between for instance a shadow play and a lantern projection. Many did not understand the nature of what they had seen, projections were often presented or perceived as magic or even as religious experiences, with most projectionists unwilling to share their secrets. Shadow play usually does not involve a projection device, but can be seen as a first step in the development of projectors. It evolved into more refined forms of puppetry in Asia. Projectors share a history with cameras in the camera obscura. The oldest known record of this principle is a description by Han Chinese philosopher Mozi, Mozi correctly asserted that the camera obscura image is inverted because light travels in straight lines from its source. In the 11th century Arab physicist Ibn al-Haytham described experiments with light through an opening in a darkened room. The use of a lens in the opening of a wall or closed window shutter of a room has been traced back to circa 1550. The shared history of camera and projector basically split with the introduction of the lantern in the later half of the 17th century. The camera obscura device would mostly live on as an aid in the form of tents. The oldest known objects that can project images are Chinese magic mirrors, the origins of these mirrors have been traced back to the Chinese Han dynasty and are also found in Japan. The mirrors were cast in bronze with a pattern embossed at the back, the pattern seen on the back of the mirror is seen in a projection when light is reflected from the polished front onto a wall or other surface
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Transmitter
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In electronics and telecommunications a transmitter or radio transmitter is an electronic device which generates a radio frequency alternating current. When a connected antenna is excited by this current, the antenna emits radio waves. The term transmitter is usually limited to equipment that generates radio waves for communication purposes, or radiolocation, such as radar and navigational transmitters. Generators of radio waves for heating or industrial purposes, such as ovens or diathermy equipment, are not usually called transmitters even though they often have similar circuits. The term is used more specifically to refer to a broadcast transmitter. This usage typically includes both the proper, the antenna, and often the building it is housed in. A transmitter can be a piece of electronic equipment, or an electrical circuit within another electronic device. A transmitter and a receiver combined in one unit is called a transceiver, the term transmitter is often abbreviated XMTR or TX in technical documents. The purpose of most transmitters is radio communication of information over a distance, the transmitter combines the information signal to be carried with the radio frequency signal which generates the radio waves, which is called the carrier signal. The information can be added to the carrier in several different ways, in an amplitude modulation transmitter, the information is added to the radio signal by varying its amplitude. In a frequency modulation transmitter, it is added by varying the signals frequency slightly. Many other types of modulation are used, the radio signal from the transmitter is applied to the antenna, which radiates the energy as radio waves. The antenna may be enclosed inside the case or attached to the outside of the transmitter, as in portable devices such as phones, walkie-talkies. In more powerful transmitters, the antenna may be located on top of a building or on a tower, and connected to the transmitter by a feed line. The first primitive radio transmitters were built by German physicist Heinrich Hertz in 1887 during his investigations of radio waves. These generated radio waves by a high voltage spark between two conductors, beginning in 1895 Guglielmo Marconi developed the first practical radio communication systems using spark transmitters. These spark-gap transmitters were used during the first three decades of radio, called the wireless telegraphy or spark era, vacuum tube transmitters took over because they were inexpensive and produced continuous waves, which could be modulated to transmit audio using amplitude modulation. This made possible commercial AM radio broadcasting, which began in about 1920, experimental television transmission had been conducted by radio stations since the late 1920s, but practical television broadcasting didnt begin until the 1940s
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Media player (software)
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A media player is a computer program for playing multimedia files like videos movies and music. Media players display standard media control icons known from physical devices such as recorders and CD players, such as play, pause, fastforward, backforward. Mainstream operating systems have at least one media player. For example, Windows comes with Windows Media Player while OS X comes with QuickTime Player, linux distributions may also come with a media players, such as SMPlayer, Amarok, Audacious, Banshee, MPlayer, Rhythmbox, Totem, VLC Media Player, and xine. Android OS comes with Google Play Music as default media player and many apps like Poweramp, Beautiful Music Player, different media players may have different goals and feature sets. Video players are a group of players that have their features geared more towards playing digital video. For example, Windows DVD Player exclusively plays DVD-Video discs and nothing else, audio players, on the other hand, specialize in digital audio. For example, AIMP exclusively plays audio formats, in addition, watching video files on it can be a trying feat. General-purpose media players also do exist, for example, Windows Media Player has exclusive features for both audio and video material, although it cannot match the feature set of Media Player Classic and MediaMonkey combined. 3D video players are used to play 2D video in 3D format, a high-quality three-dimensional video presentation requires that each frame of a motion picture be embedded with information on the depth of objects present in the scene. Tedious and costly, this method is used in a small fraction of movies produced worldwide. It is, however, possible to give an otherwise two-dimensional picture the appearance of depth, using a technique known as anaglyph processing a flat picture can be transformed so as to give an illusion of depth when viewed through anaglyph glasses. An image viewed through anaglyph glasses appears to have both protruding and deeply embedded objects in it, at the expense of somewhat distorted colours. e. as the video is being played back. Although computers with some of these capabilities were available from the late 1980s, since 2007, other types of consumer electronics, including gaming systems and dedicated media devices have crossed over to manage video and music content. The term media center also refers to specialized computer programs designed to run on personal computers
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Digital electronics
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Digital electronics or digital circuits are electronics that handle digital signals rather than by continuous ranges as used in analog electronics. All levels within a band of values represent the information state. In most cases, the number of states is two, and they are represented by two voltage bands, one near a reference value, and the other a value near the supply voltage. These correspond to the false and true values of the Boolean domain respectively, Digital techniques are useful because it is easier to get an electronic device to switch into one of a number of known states than to accurately reproduce a continuous range of values. Digital electronic circuits are made from large assemblies of logic gates. The binary number system was refined by Gottfried Wilhelm Leibniz and he established that by using the binary system. Digital logic as we know it was the brain-child of George Boole, Boole died young, but his ideas lived on. In an 1886 letter, Charles Sanders Peirce described how logical operations could be carried out by electrical switching circuits, eventually, vacuum tubes replaced relays for logic operations. Lee De Forests modification, in 1907, of the Fleming valve can be used as an AND logic gate, ludwig Wittgenstein introduced a version of the 16-row truth table as proposition 5.101 of Tractatus Logico-Philosophicus. Walther Bothe, inventor of the circuit, got part of the 1954 Nobel Prize in physics. Mechanical analog computers started appearing in the first century and were used in the medieval era for astronomical calculations. In World War II, mechanical computers were used for specialized military applications such as calculating torpedo aiming. During this time the first electronic computers were developed. Originally they were the size of a room, consuming as much power as several hundred modern personal computers. The Z3 was a computer designed by Konrad Zuse, finished in 1941. It was the worlds first working programmable, fully automatic digital computer and its operation was facilitated by the invention of the vacuum tube in 1904 by John Ambrose Fleming. Purely electronic circuit elements soon replaced their mechanical and electromechanical equivalents, the bipolar junction transistor was invented in 1947. From 1955 onwards transistors replaced vacuum tubes in computer designs, giving rise to the generation of computers
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Streaming media
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Streaming media is multimedia that is constantly received by and presented to an end-user while being delivered by a provider. A client end-user can use their player to begin to play the data file before the entire file has been transmitted. For example, in the 1930s, elevator music was among the earliest popularly available streaming media, the term streaming media can apply to media other than video and audio such as live closed captioning, ticker tape, and real-time text, which are all considered streaming text. As of 2017, streaming is generally taken to refer to cases where a user watches digital video content or listens to audio content on a computer screen. With streaming content, the user does not have to download the digital video or digital audio file before they start to watch/listen to it. There are challenges with streaming content on the Internet, as of 2016, two popular streaming services are the video sharing website YouTube, which contains video and audio files on a huge range of topics and Netflix, which streams movies and TV shows. Live streaming refers to Internet content delivered in real-time, as events happen, Live internet streaming requires a form of source media, an encoder to digitize the content, a media publisher, and a content delivery network to distribute and deliver the content. Live streaming does not need to be recorded at the origination point, in the early 1920s, George O. Attempts to display media on computers date back to the earliest days of computing in the mid-20th century, however, little progress was made for several decades, primarily due to the high cost and limited capabilities of computer hardware. From the late 1980s through the 1990s, consumer-grade personal computers became powerful enough to various media. These technological improvement facilitated the streaming of audio and video content to users in their homes and workplaces. The band Severe Tire Damage was the first group to live on the Internet. On June 24,1993, the band was playing a gig at Xerox PARC while elsewhere in the building, as proof of PARCs technology, the bands performance was broadcast and could be seen live in Australia and elsewhere. Microsoft Research developed a Microsoft TV application which was compiled under MS Windows Studio Suite, realNetworks was also a pioneer in the streaming media markets, when it broadcast a baseball game between the New York Yankees and the Seattle Mariners over the Internet in 1995. The first symphonic concert on the Internet took place at the Paramount Theater in Seattle, the concert was a collaboration between The Seattle Symphony and various guest musicians such as Slash, Matt Cameron, and Barrett Martin. When Word Magazine launched in 1995, they featured the first-ever streaming soundtracks on the Internet.4 in 1999, in June 1999 Apple also introduced a streaming media format in its QuickTime 4 application. It was later widely adopted on websites along with RealPlayer. In 2000 Industryview. com launched its worlds largest streaming video archive website to help promote themselves
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Computer network
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A computer network or data network is a telecommunications network which allows nodes to share resources. In computer networks, networked computing devices exchange data with other using a data link. The connections between nodes are established using either cable media or wireless media, the best-known computer network is the Internet. Network computer devices that originate, route and terminate the data are called network nodes, nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Two such devices can be said to be networked together when one device is able to exchange information with the other device, Computer networks differ in the transmission medium used to carry their signals, communications protocols to organize network traffic, the networks size, topology and organizational intent. In most cases, application-specific communications protocols are layered over other more general communications protocols and this formidable collection of information technology requires skilled network management to keep it all running reliably. The chronology of significant computer-network developments includes, In the late 1950s, in 1960, the commercial airline reservation system semi-automatic business research environment went online with two connected mainframes. Licklider developed a group he called the Intergalactic Computer Network. In 1964, researchers at Dartmouth College developed the Dartmouth Time Sharing System for distributed users of computer systems. The same year, at Massachusetts Institute of Technology, a group supported by General Electric and Bell Labs used a computer to route. Throughout the 1960s, Leonard Kleinrock, Paul Baran, and Donald Davies independently developed network systems that used packets to transfer information between computers over a network, in 1965, Thomas Marill and Lawrence G. Roberts created the first wide area network. This was an precursor to the ARPANET, of which Roberts became program manager. Also in 1965, Western Electric introduced the first widely used telephone switch that implemented true computer control, in 1972, commercial services using X.25 were deployed, and later used as an underlying infrastructure for expanding TCP/IP networks. In July 1976, Robert Metcalfe and David Boggs published their paper Ethernet, Distributed Packet Switching for Local Computer Networks, in 1979, Robert Metcalfe pursued making Ethernet an open standard. In 1976, John Murphy of Datapoint Corporation created ARCNET, a network first used to share storage devices. In 1995, the transmission speed capacity for Ethernet increased from 10 Mbit/s to 100 Mbit/s, by 1998, Ethernet supported transmission speeds of a Gigabit. Subsequently, higher speeds of up to 100 Gbit/s were added, the ability of Ethernet to scale easily is a contributing factor to its continued use. Providing access to information on shared storage devices is an important feature of many networks, a network allows sharing of files, data, and other types of information giving authorized users the ability to access information stored on other computers on the network
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Video game console
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A video game console is an electronic, digital or computer device that outputs a video signal or visual image to display a video game that one or more people can play. The term video game console is used to distinguish a console machine primarily designed for consumers to use for playing video games. An arcade machine consists of a video game computer, display, game controller, a home computer is a personal computer designed for home use for a variety of purposes, such as bookkeeping, accessing the Internet and playing video games. There are various types of game consoles, including home video game consoles, handheld game consoles, microconsoles. Although Ralph Baer had built working game consoles by 1966, it was nearly a decade before the Pong game made them commonplace in regular peoples living rooms. Through evolution over the 1990s and 2000s, game consoles have expanded to additional functions such as CD players, DVD players, Blu-ray disc players, web browsers, set-top boxes. The first video appeared in the 1960s. They were played on massive computers connected to vector displays, not analog televisions, Ralph H. Baer conceived the idea of a home video game in 1951. In the late 1960s, while working for Sanders Associates, Baer created a series of game console designs. In 1972, Magnavox released the Magnavox Odyssey, the first home game console which could be connected to a TV set. Magnavox replaced the switch design with separate cartridges for each game, by autumn 1975, Magnavox, bowing to the popularity of Pong, cancelled the Odyssey and released a scaled-down version that played only Pong and hockey, the Odyssey 100. A second, higher end console, the Odyssey 200, was released with the 100 and added on-screen scoring, up to four players, almost simultaneously released with Ataris own home Pong console through Sears, these consoles jump-started the consumer market. All three of the new consoles used simpler designs than the original Odyssey did with no board game pieces or extra cartridges, in the years that followed, the market saw many companies rushing similar consoles to market. Most of the consoles from this era were dedicated consoles playing only the games came with the console. These video game consoles were often just called video games, because there was reason to distinguish the two yet. While a few companies like Atari, Magnavox, and newcomer Coleco pushed the envelope, Fairchild released the Fairchild Video Entertainment System in 1976. The VES, however, contained a programmable microprocessor so its cartridges only needed a single ROM chip to store microprocessor instructions, RCA and Atari soon released their own cartridge-based consoles, the RCA Studio II and the Atari 2600, respectively. The first handheld console with interchangeable cartridges was the Microvision designed by Smith Engineering
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Simulation
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Simulation is the imitation of the operation of a real-world process or system over time. The model represents the system itself, whereas the simulation represents the operation of the system over time, Simulation is used in many contexts, such as simulation of technology for performance optimization, safety engineering, testing, training, education, and video games. Often, computer experiments are used to study simulation models, Simulation is also used with scientific modelling of natural systems or human systems to gain insight into their functioning, as in economics. Simulation can be used to show the real effects of alternative conditions. Physical simulation refers to simulation in which objects are substituted for the real thing. These physical objects are chosen because they are smaller or cheaper than the actual object or system. Simulation Fidelity is used to describe the accuracy of a simulation, Fidelity is broadly classified as 1 of 3 categories, low, medium, and high. Simulation in failure analysis refers to simulation in which we create environment/conditions to identify the cause of equipment failure and this was the best and fastest method to identify the failure cause. A computer simulation is an attempt to model a real-life or hypothetical situation on a computer so that it can be studied to see how the system works, by changing variables in the simulation, predictions may be made about the behaviour of the system. It is a tool to investigate the behaviour of the system under study. A good example of the usefulness of using computers to simulate can be found in the field of network traffic simulation, in such simulations, the model behaviour will change each simulation according to the set of initial parameters assumed for the environment. Computer simulation is used as an adjunct to, or substitution for. Several software packages exist for running computer-based simulation modeling that makes all the modeling almost effortless, modern usage of the term computer simulation may encompass virtually any computer-based representation. The computer simulates the subject machine, accordingly, in theoretical computer science the term simulation is a relation between state transition systems, useful in the study of operational semantics. Less theoretically, an application of computer simulation is to simulate computers using computers. For example, simulators have been used to debug a microprogram or sometimes commercial application programs, simulators may also be used to interpret fault trees, or test VLSI logic designs before they are constructed. Symbolic simulation uses variables to stand for unknown values, in the field of optimization, simulations of physical processes are often used in conjunction with evolutionary computation to optimize control strategies. Simulation is extensively used for educational purposes and it is frequently used by way of adaptive hypermedia
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Laser lighting display
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A laser lighting display or laser light show involves the use of laser light to entertain an audience. A laser light show may consist only of projected laser beams set to music, or may accompany another form of entertainment and this inherently more focused beam is also extremely visible, and is often used as an effect. Sometimes the beams are bounced to different positions with mirrors to create laser sculptures, Laser scanners reflect the laser beam on small mirrors which are mounted on galvanometers to which a control voltage is applied. The beam is deflected a certain amount which correlates to the amount of voltage applied to the galvanometer scanner, two galvanometer scanners can enable X-Y control voltages to aim the beam to any point on a square or rectangular raster. A planar or conical moving beam aimed through atmospheric smoke or fog can display a plane or cone of light known as a tunnel effect. A less complicated way of spreading the laser beam is by means of diffraction, a grating splits the monochromatic light into several rays, and by using holograms, essentially complicated gratings, the beam can be split into various patterns. Diffraction uses something referred to as the Huygens-Fresnel principle, the basic idea is that on every wavefront exists a forward propagating spherical wavelet of light. The initial wavefront manifests itself in the form of a straight line, aspects of the spherical waves that divert sideways are cancelled with the sideways components of the wave points on each respect point on either side. Diffraction is the method that many simple laser projectors work. Light is projected out towards multiple points, uninterrupted stationary beams from one or more laser emitters are used to create aerial beam effects, which are turned on and off at varying intervals to create a sense of excitement. As the laser beam is not manipulated in any way, this could be considered the simplest form of a light show. Although this method is not as used today due to the availability of scanners. Some lasers have the potential to cause eye damage if aimed directly into the eye, some high-power lasers used in entertainment applications can also cause burns or skin damage if enough energy is directed onto the human body and at a close enough range. Safety precautions used by laser lighting professionals include beamstops and procedures so that the beam is projected above the heads of the audience and it is possible, and in some countries commonplace, to do deliberate audience scanning. In such a case, the show is supposed to be designed and analyzed to keep the beam moving, Lasers used outdoors can pose a risk of flash blindness to pilots of aircraft if too-bright light enters the cockpit. In the U. S. outdoor laser use is regulated by the FDA. For details, see the article Lasers and aviation safety, maximum Permissible Exposure is the maximum amount of visible laser radiation considered not to cause harm, for a given exposure time. In many European countries these exposure limits may also be a legal requirement, the MPE is 25. 4W/m2 for a period of 250 milliseconds, which is equivalent to 1mW over 7mm circular aperture
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Haptic technology
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Haptic or kinesthetic communication recreates the sense of touch by applying forces, vibrations, or motions to the user. Haptic devices may incorporate tactile sensors that measure forces exerted by the user on the interface, most researchers distinguish three sensory systems related to sense of touch in humans, cutaneous, kinesthetic and haptic. All perceptions mediated by cutaneous and/or kinesthetic sensibility are referred to as tactual perception, the sense of touch may be classified as passive and active, and the term haptic is often associated with active touch to communicate or recognize objects. Haptic technology has made it possible to investigate how the sense of touch works by allowing the creation of carefully controlled haptic virtual objects. The word haptic, from the Greek, ἁπτικός, means pertaining to the sense of touch and comes from the Greek verb ἅπτεσθαι haptesthai, One of the earliest applications of haptic technology was in large aircraft that use servomechanism systems to operate control surfaces. Such systems tend to be one-way, meaning external forces applied aerodynamically to the surfaces are not perceived at the controls. Here, the normal forces are simulated with springs and weights. In lighter aircraft without servo systems, as the aircraft approached a stall the aerodynamic buffeting was felt in the pilots controls and this was a useful warning of a dangerous flight condition. This control shake is not felt when servo control systems are used, alternatively, the servo force may be measured and the signal directed to a servo system on the control, known as force feedback. Force feedback has been implemented experimentally in some excavators and is useful when excavating mixed material such as large rocks embedded in silt or clay and it allows the operator to feel and work around unseen obstacles, enabling significant increases in productivity and less risk of damage to the machine. The first US patent for a telephone was granted to Thomas D. Shannon in 1973. An early tactile man-machine communication system was constructed by A. Michael Noll at Bell Telephone Laboratories, Inc. in the early 1970s, the Interactor Vest is worn over the upper torso and the audio signal is reproduced through a speaker embedded in the vest. Both the Vest and the Cushion were launched with a tag of $99. In 1995 Norwegian Geir Jensen described a wrist watch haptic device with a skin tap mechanism and it would connect to a mobile phone via Bluetooth. Tapping-frequency patterns would identify callers to a mobile and enable the wearer to respond by selected short messages and it was submitted for a governmental innovation contest and received no award. It was not pursued or published until recovered in 2015, the Tap-in device by Jensen was devised facing the user to avoid twisting of the wrist, see image. It would adapt across all mobile phone and watch brands, in 2015 Apple started to sell a wrist watch which included skin tap sensing of notifications and alerts to mobile phone of the watch wearer. A tactile electronic display is a kind of device that presents information in tactile form
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Taste
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Taste, gustatory perception, or gustation is one of the five traditional senses that belongs to the gustatory system. Taste is the sensation produced when a substance in the mouth reacts chemically with taste receptor cells located on taste buds in the oral cavity, Taste, along with smell and trigeminal nerve stimulation, determines flavors of food or other substances. Humans have taste receptors on taste buds and other areas including the surface of the tongue. The tongue is covered with thousands of small bumps called papillae, within each papilla are hundreds of taste buds. The exception to this is the filiform papillae that do not contain taste buds, there are between 2000 and 5000 taste buds that are located on the back and front of the tongue. Others are located on the roof, sides and back of the mouth, each taste bud contains 50 to 100 taste receptor cells. The sensation of taste includes five established basic tastes, sweetness, sourness, saltiness, bitterness, scientific experiments have proven that these five tastes exist and are distinct from one another. Taste buds are able to differentiate among different tastes through detecting interaction with different molecules or ions, Sweet, umami, and bitter tastes are triggered by the binding of molecules to G protein-coupled receptors on the cell membranes of taste buds. Saltiness and sourness are perceived when alkali metal or hydrogen ions enter taste buds, temperature, detected by thermoreceptors, and coolness and hotness, through chemesthesis. As taste senses both harmful and beneficial things, all basic tastes are classified as either aversive or appetitive, Sweetness helps to identify energy-rich foods, while bitterness serves as a warning sign of poisons. Among humans, taste perception begins to fade around 50 years of age because of loss of tongue papillae, Taste in the gustatory system allows humans to distinguish between safe and harmful food, and to gauge foods’ nutritional value. Digestive enzymes in saliva begin to dissolve food into base chemicals that are washed over the papillae, the tongue is covered with thousands of small bumps called papillae, which are visible to the naked eye. Within each papilla are hundreds of taste buds, the exception to this are the filiform papillae that do not contain taste buds. There are between 2000 and 5000 taste buds that are located on the back and front of the tongue, others are located on the roof, sides and back of the mouth, and in the throat. Each taste bud contains 50 to 100 taste receptor cells, bitter foods are generally found unpleasant, while sour, salty, sweet, and meaty tasting foods generally provide a pleasurable sensation. The five specific tastes received by taste receptors are saltiness, sweetness, bitterness, sourness, and umami, as of the early twentieth century, physiologists and psychologists believed there were four basic tastes, sweetness, sourness, saltiness, and bitterness. At that time umami was not identified but now a number of authorities recognize it as the fifth taste. One study found that salt and sour taste mechanisms detect, in different ways, the presence of sodium chloride in the mouth, however
