Mr. Boston Old Mr. Boston, was a distillery located at 1010 Massachusetts Avenue in Boston, Massachusetts from 1933 to 1986, it produced its own label of gin, bourbon and brandies, as well as a few cordials and liqueurs. The distillery was founded in the Roxbury, Massachusetts neighborhood of Boston in 1933 by Irwin "Red" Benjamin and Hyman C. Berkowitz. Old Mister Boston was known for its collectible bottles such as the 1953 Presidential Inaugural Bottle. Over time, through a series of changes of ownership, the words "Old" and "Mr." were dropped from the name until it was known as "Boston." The distillery was a major employer in the Boston area from the 1930s until its closing circa 1986 when the parent company, Glenmore Distillers, shut down operations and the brand vanished. The building that housed Old Mr. Boston's operations is owned by the City of Boston and is in use as a City Inspectional Services headquarters as well as housing other city agencies such as the Boston Public Health Commission and the Department of Transitional Assistance.
The "Mr. Boston" name is known not only for its brands of distilled spirits, but for its unique reference book, Mr. Boston Official Bartender's Guide, used by both professional and home bartenders as the "Bible of Booze." The Guide was first published 1935, according to the first date published in the Guide's publisher information page, the early days after the Repeal of Prohibition, when the distillery started up business again. As late as 2012 new editions were printed. In July 2016, Mr. Boston launched its new website, mrbostondrinks.com, where you can find all of the Official Bartender's Guides in digital form. It contains over 10,500 cocktail recipes that are professionally edited. Upon entering the site, visitors are greeted with options to look for a specific cocktail, or explore areas such as bar basics, spirits, a shop. One can search for drinks by specific ingredients or specific color. There are instructional articles and videos on the site such as "view types of garnishes" and "learn to make your own grenadine."
If one is feeling nostalgic for the former print editions, 12 of the past editions between the years of 1935-2012 have been digitized, providing users the opportunity to view an original cocktail recipe with today's current recipe to see how the drink has evolved through the decades. Users can interact with the site as well, by creating their own bar book, which will allow users to "favorite" different recipes to build their book for future use and share the contents of the book with others on social media sites. Users have the opportunity to review each recipe listed and add commentary about the cocktail, which may be published on the site. "We're excited to see the culmination of seven years of work come together in this beautiful website," added Brown. "We want it to be a true resource for those in the sprits industry and those making cocktails at their home bar. We intend to keep adding to this site to make it more robust than it is now." The Barton Brands liquor unit of New York's Canandaigua Wine Co. acquired the brand name in 1995 and resumed production.
Barton uses the brand for a line of cordials. In 2009 Constellation Spirits, including the Mr. Boston brand, was sold to the Sazerac Company of New Orleans, who have subsequently released light and dark rums imported from the U. S. Virgin Islands under the Mr. Boston name; the Sazerac Company bought the Mr. Boston brand in 2009 and started working on taking the famous red book into the next century by building its comprehensive website, it started by rounding up as many of the editions of the Bartender's Guide as the company could find, at last count 58 out of the 75 guides published. From there, every single piece of data was entered into a custom built database, ending up with 210,780 points of data and 10,539 recipes Sazerac does plan to obtain the remaining 17 Official Bartender Guides it is missing and incorporate those recipes into the site as well. "The Mr. Boston books have covered the evolution of the cocktail in America since Prohibition, but sadly, they were let go over the years," said Mark Brown and chief executive officer, the Sazerac Company.
"The ties between our company and that brand are inextricably linked, with not only the Sazerac Cocktail, but our heritage in New Orleans, a city long synonymous with the cocktail culture. It was a natural fit to bring it all together where we are ensuring the future of the brand for at least another 80 years as the ‘go to' site for professional and amateur mixologists." Rock & Rye Mint & Gin 100 proof Vodka "Ten Greatest Alcohol Icons of All Time - The Story Behind the Face on the Bottle" by Frank Kelly Rich, Modern Drunkard Magazine.com "Mr. Boston Must Not Die" by Wayne Curtis, PUNCHdrink.com "Mr. Boston Official Bartender's Guide Joins the Digital Era" by Nino Marchetti, The Whiskey Wash.com "Mr. Boston's bartending guide re-launched online by the Sazerac Company" by Todd A. Price, NOLA.com
Federal Communications Commission
The Federal Communications Commission is an independent agency of the United States government created by statute to regulate interstate communications by radio, wire and cable. The FCC serves the public in the areas of broadband access, fair competition, radio frequency use, media responsibility, public safety, homeland security; the FCC was formed by the Communications Act of 1934 to replace the radio regulation functions of the Federal Radio Commission. The FCC took over wire communication regulation from the Interstate Commerce Commission; the FCC's mandated jurisdiction covers the 50 states, the District of Columbia, the Territories of the United States. The FCC provides varied degrees of cooperation and leadership for similar communications bodies in other countries of North America; the FCC is funded by regulatory fees. It has an estimated fiscal-2016 budget of US $388 million, it has 1,688 federal employees, made up of 50% males and 50% females as of December, 2017. The FCC's mission, specified in Section One of the Communications Act of 1934 and amended by the Telecommunications Act of 1996 is to "make available so far as possible, to all the people of the United States, without discrimination on the basis of race, religion, national origin, or sex, efficient and world-wide wire and radio communication services with adequate facilities at reasonable charges."
The Act furthermore provides that the FCC was created "for the purpose of the national defense" and "for the purpose of promoting safety of life and property through the use of wire and radio communications."Consistent with the objectives of the Act as well as the 1999 Government Performance and Results Act, the FCC has identified four goals in its 2018-22 Strategic Plan. They are: Closing the Digital Divide, Promoting Innovation, Protecting Consumers & Public Safety, Reforming the FCC's Processes; the FCC is directed by five commissioners appointed by the President of the United States and confirmed by the United States Senate for five-year terms, except when filling an unexpired term. The U. S. President designates one of the commissioners to serve as chairman. Only three commissioners may be members of the same political party. None of them may have a financial interest in any FCC-related business. † Commissioners may continue serving until the appointment of their replacements. However, they may not serve beyond the end of the next session of Congress following term expiration.
In practice, this means that commissioners may serve up to 1 1/2 years beyond the official term expiration dates listed above if no replacement is appointed. This would end on the date that Congress adjourns its annual session no than noon on January 4; the FCC is organized into seven Bureaus, which process applications for licenses and other filings, analyze complaints, conduct investigations and implement regulations, participate in hearings. The Consumer & Governmental Affairs Bureau develops and implements the FCC's consumer policies, including disability access. CGB serves as the public face of the FCC through outreach and education, as well as through their Consumer Center, responsible for responding to consumer inquiries and complaints. CGB maintains collaborative partnerships with state and tribal governments in such areas as emergency preparedness and implementation of new technologies; the Enforcement Bureau is responsible for enforcement of provisions of the Communications Act 1934, FCC rules, FCC orders, terms and conditions of station authorizations.
Major areas of enforcement that are handled by the Enforcement Bureau are consumer protection, local competition, public safety, homeland security. The International Bureau develops international policies in telecommunications, such as coordination of frequency allocation and orbital assignments so as to minimize cases of international electromagnetic interference involving U. S. licensees. The International Bureau oversees FCC compliance with the international Radio Regulations and other international agreements; the Media Bureau develops and administers the policy and licensing programs relating to electronic media, including cable television, broadcast television, radio in the United States and its territories. The Media Bureau handles post-licensing matters regarding direct broadcast satellite service; the Wireless Telecommunications Bureau regulates domestic wireless telecommunications programs and policies, including licensing. The bureau implements competitive bidding for spectrum auctions and regulates wireless communications services including mobile phones, public safety, other commercial and private radio services.
The Wireline Competition Bureau develops policy concerning wire line telecommunications. The Wireline Competition Bureau's main objective is to promote growth and economical investments in wireline technology infrastructure, development and services; the Public Safety and Homeland Security Bureau was launched in 2006 with a focus on critical communications infrastructure. The FCC has eleven Staff Offices; the FCC's Offices provide support services to the Bureaus. The Office of Administrative Law Judges is responsible for conducting hearings ordered by the Commission; the hearing function includes acting on interlocutory requests filed in the proceedings such as petitions to intervene, petitions to enlarge issues, contested discovery requests. An Administrative Law Judge, appointed under the Administrative Procedure Act, presides at the hearing during which documents and sworn testimony are received in evidence, witnesses are cross-examined. At the co
Second generation of video game consoles
In the history of video games, the second-generation era refers to computer and video games, video game consoles, handheld video game consoles available from 1976 to 1992. Notable platforms of the second generation include the Fairchild Channel F, Atari 2600, Odyssey², ColecoVision; this generation began in November 1976 with the release of the Fairchild Channel F. But, by the end of the era, there were over 15 different consoles, it coincided with, was fueled by, the golden age of arcade video games, a peak era of popularity and innovation for the medium. Many games for second generation home consoles were ports of arcade games; the Atari 2600 was the first to port a game in 1980, with Space Invaders, ColecoVision bundled in Nintendo's Donkey Kong for the system when it was released in August 1982. Built-in games saw limited application during this generation due to the invention of game cartridges by Jerry Lawson for the Fairchild Channel F, the first system of the generation, although some consoles, such as the RCA Studio II, still came with built in games, but had the capability of utilizing cartridges.
The popularity of the game cartridge grew after the release of the Atari 2600, from the late 1970s to the mid-1990s, most home video game systems used cartridges, before the technology was replaced by optical discs. The Fairchild Channel F was the first console to use a microprocessor, the driving technology that allowed the consoles to use cartridges. Other technology was improving during this era: screen resolution, colour graphics, AI simulation. In 1979, gaming giant Activision was created by former Atari programmers, was the first third-party developer of video games. By 1982, a glut of consoles, over-hyped game releases, low-quality games from new third-party developers began to appear, over-flowing the shelf capacity of toy stores. An over-saturation of consoles and games, coupled with poor knowledge of the market, saw the video game industry crash of 1983 and marked the start of the next generation. Beginning in December 1982, stretching through all of 1984, the crash of 1983 caused major disruption to the market in North America, caused some developers to collapse and the market to not recover until the 3rd generation.
Due to this no new games were released in 1984. The second generation ended on January 1, 1992, with the discontinuation of the Atari 2600; the Fairchild VES was released by Fairchild Semiconductor in November 1976 and was the first console of the second generation. It was the world's first CPU-based video game console, introducing the cartridge-based game code storage format; when Atari released their VCS the following year, Fairchild renamed the VES to the Fairchild Channel F. The console featured a pause button which allowed players to freeze a game so they could take a break without the need to reset or turn off the console so they did not lose their current game progress. Fairchild released twenty-six different cartridges for the system, with up to four games being on each cartridge and the console came with two pre-installed games and Tennis. In 1977, Atari released its CPU-based console called the Video Computer System called the Atari 2600. Nine games were released for the holiday season.
Atari held exclusive rights to most of the popular arcade game conversions of the day, used this key segment to support their older hardware in the market. This game advantage and the difference in price between the machines meant that each year, Atari sold more units than Intellivision, lengthening its lead despite inferior graphics; the Atari 2600 went onto to sell over 30 million units over its life time more than any other console of the second generation. Early cartridges were 2 KB ROMs for the Atari 2600 and this limit grew from 1978 to 1983: up to 16 KB for Atari 5200. Bank switching, a technique that allowed two different parts of the program to use the same memory addresses, was required for the larger cartridges to work. Atari 2600 cartridges got as large as 32k through bank switching. In the case of the Atari 2600, which had only 128 Bytes of RAM available in the console, a few late game cartridges contained a special combined RAM/ROM chip, thus adding another 256 bytes of RAM inside the cartridge itself.
The Atari standard joystick, released in 1977, was a digital controller, with a single fire button. The Atari joystick port was for many years the de facto standard digital joystick specification. In 1982, Atari released the Atari 5200 in an attempt to compete with the Intellivision. While superior to the 2600, poor sales and lack of new games meant Atari only supported it for two years before it was discontinued; the Bally Astrocade was referred to as the Bally Home Library Computer, was released in 1977, but was available only through mail order. Delays in the production meant that none of the units shipped until 1978. In this form, it sold at computer stores and had little retail exposure unlike the Atari VCS; the rights to the console were sold to Astrovision in 1981 and they re-released the unit with the BASIC cartridge included for free. When Astrovision changed their name to Astrocade in 1982 they changed the name of the console to the Astrocade to follow suite, it sold under this name until the video game crash of 1983 and was discontinued in 1983.
In 1978, Magnavox released its microprocessor-based console, the
Japan is an island country in East Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asian continent and stretches from the Sea of Okhotsk in the north to the East China Sea and the Philippine Sea in the south; the kanji that make up Japan's name mean "sun origin", it is called the "Land of the Rising Sun". Japan is a stratovolcanic archipelago consisting of about 6,852 islands; the four largest are Honshu, Hokkaido and Shikoku, which make up about ninety-seven percent of Japan's land area and are referred to as home islands. The country is divided into 47 prefectures in eight regions, with Hokkaido being the northernmost prefecture and Okinawa being the southernmost one; the population of 127 million is the world's tenth largest. 90.7 % of people live in cities. About 13.8 million people live in the capital of Japan. The Greater Tokyo Area is the most populous metropolitan area in the world with over 38 million people. Archaeological research indicates; the first written mention of Japan is in Chinese history texts from the 1st century AD.
Influence from other regions China, followed by periods of isolation from Western Europe, has characterized Japan's history. From the 12th century until 1868, Japan was ruled by successive feudal military shōguns who ruled in the name of the Emperor. Japan entered into a long period of isolation in the early 17th century, ended in 1853 when a United States fleet pressured Japan to open to the West. After nearly two decades of internal conflict and insurrection, the Imperial Court regained its political power in 1868 through the help of several clans from Chōshū and Satsuma – and the Empire of Japan was established. In the late 19th and early 20th centuries, victories in the First Sino-Japanese War, the Russo-Japanese War and World War I allowed Japan to expand its empire during a period of increasing militarism; the Second Sino-Japanese War of 1937 expanded into part of World War II in 1941, which came to an end in 1945 following the Japanese surrender. Since adopting its revised constitution on May 3, 1947, during the occupation led by SCAP, the sovereign state of Japan has maintained a unitary parliamentary constitutional monarchy with an Emperor and an elected legislature called the National Diet.
Japan is a member of the ASEAN Plus mechanism, UN, the OECD, the G7, the G8, the G20, is considered a great power. Its economy is the world's third-largest by nominal GDP and the fourth-largest by purchasing power parity, it is the world's fourth-largest exporter and fourth-largest importer. Japan benefits from a skilled and educated workforce. Although it has renounced its right to declare war, Japan maintains a modern military with the world's eighth-largest military budget, used for self-defense and peacekeeping roles. Japan is a developed country with a high standard of living and Human Development Index, its population enjoys the highest life expectancy and third lowest infant mortality rate in the world, but is experiencing issues due to an aging population and low birthrate. Japan is renowned for its historical and extensive cinema, influential music industry, video gaming, rich cuisine and its major contributions to science and modern technology; the Japanese word for Japan is 日本, pronounced Nihon or Nippon and means "the origin of the sun".
The character nichi means "sun" or "day". The compound therefore means "origin of the sun" and is the source of the popular Western epithet "Land of the Rising Sun"; the earliest record of the name Nihon appears in the Chinese historical records of the Tang dynasty, the Old Book of Tang. At the end of the seventh century, a delegation from Japan requested that Nihon be used as the name of their country; this name may have its origin in a letter sent in 607 and recorded in the official history of the Sui dynasty. Prince Shōtoku, the Regent of Japan, sent a mission to China with a letter in which he called himself "the Emperor of the Land where the Sun rises"; the message said: "Here, I, the emperor of the country where the sun rises, send a letter to the emperor of the country where the sun sets. How are you". Prior to the adoption of Nihon, other terms such as Yamato and Wakoku were used; the term Wa is a homophone of Wo 倭, used by the Chinese as a designation for the Japanese as early as the third century Three Kingdoms period.
Another form of Wa, Wei in Chinese) was used for an early state in Japan called Nakoku during the Han dynasty. However, the Japanese disliked some connotation of Wa 倭, it was therefore replaced with the substitute character Wa, meaning "togetherness, harmony"; the English word Japan derives from the historical Chinese pronunciation of 日本. The Old Mandarin or early Wu Chinese pronunciation of Japan was recorded by Marco Polo as Cipangu. In modern Shanghainese, a Wu dialect, the pronunciation of characters 日本; the old Malay word for Japan, Japun or Japang, was borrowed from a southern coastal Chinese dialect Fukienese or Ningpo – and this Malay word was encountered by Portuguese traders in Southeast Asia in the 16th century. These Early Portuguese traders brought the word
A ROM cartridge referred to as a cartridge or cart, is a removable memory card containing ROM designed to be connected to a consumer electronics device such as a home computer, video game console and to a lesser extent, electronic musical instruments. ROM cartridges can be used to load software such as other application programs; the cartridge slot could be used for hardware additions, for example speech synthesis. Some cartridges had battery-backed static random-access memory, allowing a user to save data such as game progress or scores between uses. ROM cartridges allowed the user to load and access programs and data without the expense of a floppy drive, an expensive peripheral during the home computer era, without using slow and unreliable Compact Cassette tape. An advantage for the manufacturer was the relative security of the software in cartridge form, difficult for end users to replicate. However, cartridges were expensive to manufacture compared to making a floppy disk or CD-ROM; as disk drives became more common and software expanded beyond the practical limits of ROM size, cartridge slots disappeared from game consoles and personal computers.
Cartridges are still used today with handheld gaming consoles such as the Nintendo DS, Nintendo 3DS, PlayStation Vita, the tablet-like hybrid console Nintendo Switch. Due to its widespread usage for video gaming, ROM cartridges were colloquially referred to as a game cartridge. ROM cartridges were popularized by early home computers which featured a special bus port for the insertion of cartridges containing software in ROM. In most cases the designs were crude, with the entire address and data buses exposed by the port and attached via an edge connector; the Texas Instruments TI 59 family of programmable scientific calculators used interchangeable ROM cartridges that could be installed in a slot at the back of the calculator. The calculator came with a module that provides several standard mathematical functions including solution of simultaneous equations. Other modules were specialized for financial calculations, or other subject areas, a "games" module. Modules were not user-programmable.
The Hewlett-Packard HP-41C had expansion slots which could hold ROM memory as well as I/O expansion ports. Notable computers using cartridges in addition to magnetic media were the Commodore VIC-20 and 64, MSX standard, the Atari 8-bit family, the Texas Instruments TI-99/4A and the IBM PCjr; some arcade system boards, such as Capcom's CP System and SNK's Neo Geo used ROM cartridges. The modern take on game cartridges was invented by Jerry Lawson as part of the Fairchild Channel F home console in 1976; the cartridge approach gained more popularity with the Atari 2600 released the following year. From the late 1970s to mid-1990s, the majority of home video game systems were cartridge-based; as compact disc technology came to be used for data storage, most hardware companies moved from cartridges to CD-based game systems. Nintendo remained the lone hold-out. SNK still released games on the cartridge-based Neo Geo until 2004, with the final official release being Samurai Shodown V Special. Nintendo's handheld consoles, continued to use cartridges due to their faster loading times and minimal equipment for data reading being beneficial for playing video games in short, several-minute intervals.
ROM cartridges can not only additional hardware expansion as well. Examples include the Super FX coprocessor chip in some Super NES game paks, The SVP chip in the Sega Genesis Version Of Virtua Racing, voice and chess modules in the Magnavox Odyssey². Micro Machines 2 on the Genesis/Mega Drive used a custom "J-Cart" cartridge design by Codemasters which incorporated two additional gamepad ports; this allowed players to have up to four gamepads connected to the console without the need for an additional multi-controller adapter. The ROM cartridge slot principle continues in various mobile devices, thanks to the development of high density low-cost flash memory. For example, a GPS navigation device might allow user updates of maps by inserting a flash memory chip into an expansion slot. An E-book reader can store the text of several thousand books on a flash chip. Personal computers may allow the user to boot and install an operating system off a USB flash drive instead of CD ROM or floppy disks.
Digital cameras with flash drive slots allow users to exchange cards when full, allow rapid transfer of pictures to a computer or printer. Storing software on ROM cartridges has a number of advantages over other methods of storage like floppy disks and optical media; as the ROM cartridge is memory mapped into the system's normal address space, software stored in the ROM can be read like normal memory. Software run directly from ROM uses less RAM, leaving memory free for other processes. While the standard size of optical media dictates a minimum size for devices which can read disks, ROM cartridges can be manufactured in different sizes, allowing for smaller devices like handheld game systems. ROM cartridges can be damaged, but they are more robust and resistant to damage than optical media.
Vacuum is space devoid of matter. The word stems from the Latin adjective vacuus for "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressure. Physicists discuss ideal test results that would occur in a perfect vacuum, which they sometimes call "vacuum" or free space, use the term partial vacuum to refer to an actual imperfect vacuum as one might have in a laboratory or in space. In engineering and applied physics on the other hand, vacuum refers to any space in which the pressure is lower than atmospheric pressure; the Latin term in vacuo is used to describe an object, surrounded by a vacuum. The quality of a partial vacuum refers to how it approaches a perfect vacuum. Other things equal, lower gas pressure means higher-quality vacuum. For example, a typical vacuum cleaner produces enough suction to reduce air pressure by around 20%. Much higher-quality vacuums are possible. Ultra-high vacuum chambers, common in chemistry and engineering, operate below one trillionth of atmospheric pressure, can reach around 100 particles/cm3.
Outer space is an higher-quality vacuum, with the equivalent of just a few hydrogen atoms per cubic meter on average in intergalactic space. According to modern understanding if all matter could be removed from a volume, it would still not be "empty" due to vacuum fluctuations, dark energy, transiting gamma rays, cosmic rays and other phenomena in quantum physics. In the study of electromagnetism in the 19th century, vacuum was thought to be filled with a medium called aether. In modern particle physics, the vacuum state is considered the ground state of a field. Vacuum has been a frequent topic of philosophical debate since ancient Greek times, but was not studied empirically until the 17th century. Evangelista Torricelli produced the first laboratory vacuum in 1643, other experimental techniques were developed as a result of his theories of atmospheric pressure. A torricellian vacuum is created by filling a tall glass container closed at one end with mercury, inverting it in a bowl to contain the mercury.
Vacuum became a valuable industrial tool in the 20th century with the introduction of incandescent light bulbs and vacuum tubes, a wide array of vacuum technology has since become available. The recent development of human spaceflight has raised interest in the impact of vacuum on human health, on life forms in general; the word vacuum comes from Latin, meaning'an empty space, void', noun use of neuter of vacuus, meaning "empty", related to vacare, meaning "be empty". Vacuum is one of the few words in the English language that contains two consecutive letters'u'. There has been much dispute over whether such a thing as a vacuum can exist. Ancient Greek philosophers debated the existence of a vacuum, or void, in the context of atomism, which posited void and atom as the fundamental explanatory elements of physics. Following Plato the abstract concept of a featureless void faced considerable skepticism: it could not be apprehended by the senses, it could not, provide additional explanatory power beyond the physical volume with which it was commensurate and, by definition, it was quite nothing at all, which cannot rightly be said to exist.
Aristotle believed that no void could occur because the denser surrounding material continuum would fill any incipient rarity that might give rise to a void. In his Physics, book IV, Aristotle offered numerous arguments against the void: for example, that motion through a medium which offered no impediment could continue ad infinitum, there being no reason that something would come to rest anywhere in particular. Although Lucretius argued for the existence of vacuum in the first century BC and Hero of Alexandria tried unsuccessfully to create an artificial vacuum in the first century AD, it was European scholars such as Roger Bacon, Blasius of Parma and Walter Burley in the 13th and 14th century who focused considerable attention on these issues. Following Stoic physics in this instance, scholars from the 14th century onward departed from the Aristotelian perspective in favor of a supernatural void beyond the confines of the cosmos itself, a conclusion acknowledged by the 17th century, which helped to segregate natural and theological concerns.
Two thousand years after Plato, René Descartes proposed a geometrically based alternative theory of atomism, without the problematic nothing–everything dichotomy of void and atom. Although Descartes agreed with the contemporary position, that a vacuum does not occur in nature, the success of his namesake coordinate system and more implicitly, the spatial–corporeal component of his metaphysics would come to define the philosophically modern notion of empty space as a quantified extension of volume. By the ancient definition however, directional information and magnitude were conceptually distinct. In the medieval Middle Eastern world, the physicist and Islamic scholar, Al-Farabi, conducted a small experiment concerning the existence of vacuum, in which he investigated handheld plungers in water, he concluded that air's volume can expand to fill available space, he suggested that the concept of perfect vacuum was incoherent. However, according to Nader El-Bizri, the physicist Ibn al-Haytham and the Mu'tazili theologians disagreed with Aristotle and Al-Farabi, they supported the existence of a void.
Using geometry, Ibn al-Haytham mathematically demonstrated that place is the imagined three-dimensional void between the inner surfaces of a containing body. According to Ahmad Dallal, Abū Rayhān al-Bīrūnī states that "there is no observable
Read-only memory is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM can only be modified with difficulty, or not at all, so it is used to store firmware or application software in plug-in cartridges. Read-only memory refers to memory, hard-wired, such as diode matrix and the mask ROM, which cannot be changed after manufacture. Although discrete circuits can be altered in principle, integrated circuits cannot, are useless if the data is bad or requires an update; that such memory can never be changed is a disadvantage in many applications, as bugs and security issues cannot be fixed, new features cannot be added. More ROM has come to include memory, read-only in normal operation, but can still be reprogrammed in some way. Erasable programmable read-only memory and electrically erasable programmable read-only memory can be erased and re-programmed, but this can only be done at slow speeds, may require special equipment to achieve, is only possible a certain number of times.
IBM used Capacitor Read Only Storage and Transformer Read Only Storage to store microcode for the smaller System/360 models, the 360/85 and the initial two models of the S/370. On some models there was a Writeable Control Store for additional diagnostics and emulation support; the simplest type of solid-state ROM is as old as the semiconductor technology itself. Combinational logic gates can be joined manually to map n-bit address input onto arbitrary values of m-bit data output. With the invention of the integrated circuit came mask ROM. Mask ROM consists of a grid of word lines and bit lines, selectively joined together with transistor switches, can represent an arbitrary look-up table with a regular physical layout and predictable propagation delay. In mask ROM, the data is physically encoded in the circuit, so it can only be programmed during fabrication; this leads to a number of serious disadvantages: It is only economical to buy mask ROM in large quantities, since users must contract with a foundry to produce a custom design.
The turnaround time between completing the design for a mask ROM and receiving the finished product is long, for the same reason. Mask ROM is impractical for R&D work since designers need to modify the contents of memory as they refine a design. If a product is shipped with faulty mask ROM, the only way to fix it is to recall the product and physically replace the ROM in every unit shipped. Subsequent developments have addressed these shortcomings. PROM, invented in 1956, allowed users to program its contents once by physically altering its structure with the application of high-voltage pulses; this addressed problems 1 and 2 above, since a company can order a large batch of fresh PROM chips and program them with the desired contents at its designers' convenience. The 1971 invention of EPROM solved problem 3, since EPROM can be reset to its unprogrammed state by exposure to strong ultraviolet light. EEPROM, invented in 1983, went a long way to solving problem 4, since an EEPROM can be programmed in-place if the containing device provides a means to receive the program contents from an external source.
Flash memory, invented at Toshiba in the mid-1980s, commercialized in the early 1990s, is a form of EEPROM that makes efficient use of chip area and can be erased and reprogrammed thousands of times without damage. All of these technologies improved the flexibility of ROM, but at a significant cost-per-chip, so that in large quantities mask ROM would remain an economical choice for many years. Rewriteable technologies were envisioned as replacements for mask ROM; the most recent development is NAND flash invented at Toshiba. Its designers explicitly broke from past practice, stating plainly that "the aim of NAND Flash is to replace hard disks," rather than the traditional use of ROM as a form of non-volatile primary storage; as of 2007, NAND has achieved this goal by offering throughput comparable to hard disks, higher tolerance of physical shock, extreme miniaturization, much lower power consumption. Every stored-program computer may use a form of non-volatile storage to store the initial program that runs when the computer is powered on or otherwise begins execution.
Every non-trivial computer needs some form of mutable memory to record changes in its state as it executes. Forms of read-only memory were employed as non-volatile storage for programs in most early stored-program computers, such as ENIAC after 1948. Read-only memory was simpler to implement since it needed only a mechanism to read stored values, not to change them in-place, thus could be implemented with crude electromechanical devices. With the advent of integrated circuits in the 1960s, both ROM and its mutable counterpart static RAM were implemented as arrays of transistors in silicon chips.