A nightclub, music club or club, is an entertainment venue and bar that operates late into the night. A nightclub is distinguished from regular bars, pubs or taverns by the inclusion of a stage for live music, one or more dance floor areas and a DJ booth, where a DJ plays recorded music; the upmarket nature of nightclubs can be seen in the inclusion of VIP areas in some nightclubs, for celebrities and their guests. Nightclubs are much more than pubs or sports bars to use bouncers to screen prospective clubgoers for entry; some nightclub bouncers do not admit people with informal clothing or gang apparel as part of a dress code. The busiest nights for a nightclub are Saturday night. Most clubs or club nights cater to certain music genres, such as hip hop. Many clubs have recurring club nights on different days of the week. Most club nights focus on a particular sound for branding effects. From about 1900 to 1920, working class Americans would gather at honky tonks or juke joints to dance to music played on a piano or a jukebox.
Webster Hall is credited as the first modern nightclub, being built in 1886 and starting off as a "social hall" functioning as a home for dance and political activism events. During Prohibition in the United States, nightclubs went underground as illegal speakeasy bars, with Webster Hall staying open, with rumors circulating of Al Capone's involvement and police bribery. With the repeal of Prohibition in February 1933, nightclubs were revived, such as New York's 21 Club, Copacabana, El Morocco, the Stork Club; these nightclubs featured big bands. In Germany, the first discothèque on record that involved a disc jockey was Scotch-Club, which opened in 1959. In Occupied France and bebop music, the jitterbug dance were banned by the Nazis as "decadent American influences", so as an act of resistance, people met at hidden basements called discothèques where they danced to jazz and swing music, played on a single turntable when a jukebox was not available; these discothèques were patronized by anti-Vichy youth called zazous.
There were underground discothèques in Nazi Germany patronized by anti-Nazi youth called the swing kids. In Harlem, Connie's Inn and the Cotton Club were popular venues for white audiences. Before 1953 and some years thereafter, most bars and nightclubs used a jukebox or live bands. In Paris, at a club named Whisky à Gogo, founded in 1947, Régine in 1953 laid down a dance-floor, suspended coloured lights and replaced the jukebox with two turntables that she operated herself so there would be no breaks between the music; the Whisky à Gogo set into place the standard elements of the modern post World War II discothèque-style nightclub. At the end of the 1950s, several of the coffee bars in Soho introduced afternoon dancing and the most famous was Les Enfants Terribles at 93 Dean St; these original discothèques were nothing like the night clubs, as they were unlicensed and catered to a young public—mostly made up of French and Italians working illegally in catering, to learn English as well as au pair girls from most of western Europe.
While the discothèque swept Europe throughout the 1960s, it did not reach the United States until the 1970s, where the first rock and roll generation preferred rough and tumble bars and taverns to nightclubs until the disco era. In the early 1960s, Mark Birley opened a members-only discothèque nightclub, Annabel's, in Berkeley Square, London. In 1962, the Peppermint Lounge in New York City became popular and is the place where go-go dancing originated. Sybil Burton opened the "Arthur" discothèque in 1965 on East 54th Street in Manhattan on the site of the old El Morocco nightclub and it became the first and hottest disco in New York City through 1969; the first large-scale discothèque in Germany opened in 1967 as the club Blow Up in Munich, which because of its extravagance and excesses gained international reputation. Disco has its roots in the underground club scene. During the early 1970s in New York City, disco clubs were places where oppressed or marginalized groups such as homosexuals, Latinos, Italian-Americans, Jews could party without following male to female dance protocol or exclusive club policies.
Discoteques had a law. This shifted the idea of this post-heterosexist community, as women could be seen as a kind of gateway for men to advance their own experience without fear of being arrested under the male-to-male dancing law; the women sought these experiences to seek safety in a venue that embraced the independent woman — with an eye to one or more of the same or opposite sex or none. Although the culture that surrounded disco was progressive in dance couples, cross-genre music, a push to put the physical over the rational, the role of female bodies looked to be placed in the role of safety net, it brought together people from different backgrounds. These clubs acted as safe havens for homosexual partygoers to dance in peace and away from public scrutiny. By the late 1970s many major U. S. cities had thriving disco club scenes centered on discothèques and private loft parties where DJs would play disco hits through powerful PA systems for the dancers. The DJs played "... a smooth mix of long single records to keep people'dancing all night long'".
Some of the most prestigious clubs had elaborate lighting systems that throbbed to the beat of the music. The genre of disco has changed through the years, it is classified both as a nightclub. This club culture that originated in downtown New York, was attended by a variety of different ethnicities and economic backgrounds, it was an inex
Unix is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, others. Intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors including University of California, Microsoft, IBM, Sun Microsystems. In the early 1990s, AT&T sold its rights in Unix to Novell, which sold its Unix business to the Santa Cruz Operation in 1995; the UNIX trademark passed to The Open Group, a neutral industry consortium, which allows the use of the mark for certified operating systems that comply with the Single UNIX Specification. As of 2014, the Unix version with the largest installed base is Apple's macOS. Unix systems are characterized by a modular design, sometimes called the "Unix philosophy"; this concept entails that the operating system provides a set of simple tools that each performs a limited, well-defined function, with a unified filesystem as the main means of communication, a shell scripting and command language to combine the tools to perform complex workflows.
Unix distinguishes itself from its predecessors as the first portable operating system: the entire operating system is written in the C programming language, thus allowing Unix to reach numerous platforms. Unix was meant to be a convenient platform for programmers developing software to be run on it and on other systems, rather than for non-programmers; the system grew larger as the operating system started spreading in academic circles, as users added their own tools to the system and shared them with colleagues. At first, Unix was not designed to be multi-tasking. Unix gained portability, multi-tasking and multi-user capabilities in a time-sharing configuration. Unix systems are characterized by various concepts: the use of plain text for storing data; these concepts are collectively known as the "Unix philosophy". Brian Kernighan and Rob Pike summarize this in The Unix Programming Environment as "the idea that the power of a system comes more from the relationships among programs than from the programs themselves".
In an era when a standard computer consisted of a hard disk for storage and a data terminal for input and output, the Unix file model worked quite well, as I/O was linear. In the 1980s, non-blocking I/O and the set of inter-process communication mechanisms were augmented with Unix domain sockets, shared memory, message queues, semaphores, network sockets were added to support communication with other hosts; as graphical user interfaces developed, the file model proved inadequate to the task of handling asynchronous events such as those generated by a mouse. By the early 1980s, users began seeing Unix as a potential universal operating system, suitable for computers of all sizes; the Unix environment and the client–server program model were essential elements in the development of the Internet and the reshaping of computing as centered in networks rather than in individual computers. Both Unix and the C programming language were developed by AT&T and distributed to government and academic institutions, which led to both being ported to a wider variety of machine families than any other operating system.
Under Unix, the operating system consists of many libraries and utilities along with the master control program, the kernel. The kernel provides services to start and stop programs, handles the file system and other common "low-level" tasks that most programs share, schedules access to avoid conflicts when programs try to access the same resource or device simultaneously. To mediate such access, the kernel has special rights, reflected in the division between user space and kernel space - although in microkernel implementations, like MINIX or Redox, functions such as network protocols may run in user space; the origins of Unix date back to the mid-1960s when the Massachusetts Institute of Technology, Bell Labs, General Electric were developing Multics, a time-sharing operating system for the GE-645 mainframe computer. Multics featured several innovations, but presented severe problems. Frustrated by the size and complexity of Multics, but not by its goals, individual researchers at Bell Labs started withdrawing from the project.
The last to leave were Ken Thompson, Dennis Ritchie, Douglas McIlroy, Joe Ossanna, who decided to reimplement their experiences in a new project of smaller scale. This new operating system was without organizational backing, without a name; the new operating system was a single-tasking system. In 1970, the group coined the name Unics for Uniplexed Information and Computing Service, as a pun on Multics, which stood for Multiplexed Information and Computer Services. Brian Kernighan takes credit for the idea, but adds that "no one can remember" the origin of the final spelling Unix. Dennis Ritchie, Doug McIlroy, Peter G. Neumann credit Kernighan; the operating system was written in assembly language, but in 1973, Version 4 Unix was rewritten in C. Version 4 Unix, still had many PDP-11 dependent codes, is not suitable for porting; the first port to other platform was made five years f
Open-source software is a type of computer software in which source code is released under a license in which the copyright holder grants users the rights to study and distribute the software to anyone and for any purpose. Open-source software may be developed in a collaborative public manner. Open-source software is a prominent example of open collaboration. Open-source software development generates an more diverse scope of design perspective than any company is capable of developing and sustaining long term. A 2008 report by the Standish Group stated that adoption of open-source software models have resulted in savings of about $60 billion per year for consumers. In the early days of computing and developers shared software in order to learn from each other and evolve the field of computing; the open-source notion moved to the way side of commercialization of software in the years 1970-1980. However, academics still developed software collaboratively. For example Donald Knuth in 1979 with the TeX typesetting system or Richard Stallman in 1983 with the GNU operating system.
In 1997, Eric Raymond published The Cathedral and the Bazaar, a reflective analysis of the hacker community and free-software principles. The paper received significant attention in early 1998, was one factor in motivating Netscape Communications Corporation to release their popular Netscape Communicator Internet suite as free software; this source code subsequently became the basis behind SeaMonkey, Mozilla Firefox and KompoZer. Netscape's act prompted Raymond and others to look into how to bring the Free Software Foundation's free software ideas and perceived benefits to the commercial software industry, they concluded that FSF's social activism was not appealing to companies like Netscape, looked for a way to rebrand the free software movement to emphasize the business potential of sharing and collaborating on software source code. The new term they chose was "open source", soon adopted by Bruce Perens, publisher Tim O'Reilly, Linus Torvalds, others; the Open Source Initiative was founded in February 1998 to encourage use of the new term and evangelize open-source principles.
While the Open Source Initiative sought to encourage the use of the new term and evangelize the principles it adhered to, commercial software vendors found themselves threatened by the concept of distributed software and universal access to an application's source code. A Microsoft executive publicly stated in 2001 that "open source is an intellectual property destroyer. I can't imagine something that could be worse than this for the software business and the intellectual-property business." However, while Free and open-source software has played a role outside of the mainstream of private software development, companies as large as Microsoft have begun to develop official open-source presences on the Internet. IBM, Oracle and State Farm are just a few of the companies with a serious public stake in today's competitive open-source market. There has been a significant shift in the corporate philosophy concerning the development of FOSS; the free-software movement was launched in 1983. In 1998, a group of individuals advocated that the term free software should be replaced by open-source software as an expression, less ambiguous and more comfortable for the corporate world.
Software licenses grant rights to users which would otherwise be reserved by copyright law to the copyright holder. Several open-source software licenses have qualified within the boundaries of the Open Source Definition; the most prominent and popular example is the GNU General Public License, which "allows free distribution under the condition that further developments and applications are put under the same licence", thus free. The open source label came out of a strategy session held on April 7, 1998 in Palo Alto in reaction to Netscape's January 1998 announcement of a source code release for Navigator. A group of individuals at the session included Tim O'Reilly, Linus Torvalds, Tom Paquin, Jamie Zawinski, Larry Wall, Brian Behlendorf, Sameer Parekh, Eric Allman, Greg Olson, Paul Vixie, John Ousterhout, Guido van Rossum, Philip Zimmermann, John Gilmore and Eric S. Raymond, they used the opportunity before the release of Navigator's source code to clarify a potential confusion caused by the ambiguity of the word "free" in English.
Many people claimed that the birth of the Internet, since 1969, started the open-source movement, while others do not distinguish between open-source and free software movements. The Free Software Foun
A programmer, coder, or software engineer is a person who creates computer software. The term computer programmer can refer to a specialist in one area of computers, or to a generalist who writes code for many kinds of software. One who practices, or professes, a formal approach to programming may be known as a programmer analyst. On the other hand, "code monkey" is a derogatory term for a programmer who writes code without any involvement in the design or specifications. A programmer's primary computer language is prefixed to these titles, those who work in a web environment prefix their titles with web. A range of occupations—including: software developer, web developer, mobile applications developer, embedded firmware developer, software engineer, computer scientist, game programmer, game developer, or software analyst—that involve programming require a range of other skills; the use of the term programmer for these positions is sometimes considered an insulting or derogatory simplification.
British countess and mathematician Ada Lovelace is considered the first computer programmer, as she was the first to publish an algorithm intended for implementation on Charles Babbage's analytical engine, in October 1842, intended for the calculation of Bernoulli numbers. Because Babbage's machine was never completed to a functioning standard in her time, she never saw this algorithm run; the first person to run a program on a functioning modern electronically based computer was computer scientist Konrad Zuse, in 1941. The ENIAC programming team, consisting of Kay McNulty, Betty Jennings, Betty Snyder, Marlyn Wescoff, Fran Bilas and Ruth Lichterman were the first working programmers. International Programmers' Day is celebrated annually on 7 January. In 2009, the government of Russia decreed a professional annual holiday known as Programmers' Day to be celebrated on 13 September, it had been an unofficial international holiday before that. The word "software" did not appear in print until the 1960s.
Before this time, computers were programmed either by customers, or the few commercial computer vendors of the time, such as UNIVAC and IBM. The first company founded to provide software products and services was Computer Usage Company in 1955; the software industry expanded in the early 1960s immediately after computers were first sold in mass-produced quantities. Universities and business customers created a demand for software. Many of these programs were written in-house by full-time staff programmers; some were distributed between users of a particular machine for no charge. Others were done on a commercial basis, other firms such as Computer Sciences Corporation started to grow; the computer/hardware makers started bundling operating systems, system software and programming environments with their machines. The industry expanded with the rise of the personal computer in the mid-1970s, which brought computing to the desktop of the office worker. In the following years, it created a growing market for games and utilities.
DOS, Microsoft's first operating system product, was the dominant operating system at the time. In the early years of the 21st century, another successful business model has arisen for hosted software, called software-as-a-service, or SaaS. From the point of view of producers of some proprietary software, SaaS reduces the concerns about unauthorized copying, since it can only be accessed through the Web, by definition, no client software is loaded onto the end user's PC. By 2014, the role of cloud developer had been defined. Computer programmers write, test and maintain the detailed instructions, called computer programs, that computers must follow to perform their functions. Programmers conceive and test logical structures for solving problems by computer. Many technical innovations in programming — advanced computing technologies and sophisticated new languages and programming tools — have redefined the role of a programmer and elevated much of the programming work done today. Job titles and descriptions may vary, depending on the organization.
Programmers work in many settings, including corporate information technology departments, big software companies, small service firms and government entities of all sizes. Many professional programmers work for consulting companies at client sites as contractors. Licensing is not required to work as a programmer, although professional certifications are held by programmers. Programming is considered a profession. Programmers' work varies depending on the type of business for which they are writing programs. For example, the instructions involved in updating financial records are different from those required to duplicate conditions on an aircraft for pilots training in a flight simulator. Simple programs can be written in a few hours, more complex ones may require more than a year of work, while others are never considered'complete' but rather are continuously improved as long as they stay in use. In most cases, several programmers work together as a team under a senior programmer’s supervision.
Programmers write programs according to the specifications determined b
The Mozilla Organization rewrote the entire browser's source code based on the Gecko rendering engine. The Gecko engine would be used to power the Mozilla Foundation's Firefox browser. Under AOL, Netscape's browser development continued until December 2007 when AOL announced that the company would stop supporting the Netscape browser as of early 2008; as of 2011, AOL has continued to use the Netscape brand to market a discount Internet service provider. AOL renamed the Netscape Communications Corporation to New Aurora Corporation, transferred the Netscape brand to themselves. AOL sold the former Netscape company, now known as New Aurora Corporation, to Microsoft, who in turn sold them again to Facebook; the former Netscape company is a non-operating subsidiary of Facebook, still known as New Aurora Corporation. The Netscape brand remained with AOL. Netscape Communications is now part of America Online. AOL envisioned the Netscape Web site as a Web portal, providing a source of revenue through advertising and e-commerce.
After the antitrust ruling found that Microsoft had held and abused monopolistic power, Microsoft settled with AOL for $750 million. As part of the settlement, AOL gained the rights to distribute Internet Explorer. Entrepreneur Jason Calcanis leveraged the Netscape brand to create Propeller, a social bookmarking and news site similar to Digg.com. Netscape was the first company to attempt to capitalize on the nascent World Wide Web, it was founded under the name Mosaic Communications Corporation on April 4, 1994, the brainchild of Jim Clark who had recruited Marc Andreessen as co-founder and Kleiner Perkins Caufield & Byers as investors. The first meeting between Clark and Andreessen was never about a software or service like Netscape, but more about a product, similar to Nintendo. Clark recruited other early team members from NCSA Mosaic. Jim Barksdale came on board as CEO in January 1995. Jim Clark and Marc Andreessen created a 20-page concept pitch for an online gaming network to Nintendo for the Nintendo 64 console, but a deal was never reached.
Marc Andreessen explains, "If they had shipped a year earlier, we would have done that instead of Netscape."The company's first product was the web browser, called Mosaic Netscape 0.9, released on October 13, 1994. Within four months of its release, it had taken three-quarters of the browser market, it became the main browser for Internet users in such a short time due to its superiority over other competition, like Mosaic. This browser was subsequently renamed Netscape Navigator, the company took the "Netscape" name on November 14, 1994, to avoid trademark ownership problems with NCSA, where the initial Netscape employees had created the NCSA Mosaic web browser; the Mosaic Netscape web browser did not use any NCSA Mosaic code. The internal codename for the company's browser was Mozilla, which stood for "Mosaic killer", as the company's goal was to displace NCSA Mosaic as the world's number one web browser. A cartoon Godzilla-like lizard mascot was drawn by artist-employee Dave Titus, which went well with the theme of crushing the competition.
The Mozilla mascot featured prominently on Netscape's website in the company's early years. However, the need to project a more "professional" image led to this being removed. On August 9, 1995, Netscape made an successful IPO; the stock was set to be offered at US$14 per share, but a last-minute decision doubled the initial offering to US$28 per share. The stock's value soared to US$75 during the first day of trading, nearly a record for first-day gain; the stock closed at US$58.25. While it was somewhat unusual for a company to go public prior to becoming profitable, Netscape's revenues had, in fact, doubled every quarter in 1995; the success of this IPO subsequently inspired the use of the term "Netscape moment" to describe a high-visibility IPO that signals the dawn of a new industry. During this period, Netscape pursued a publicity strategy packaging Andreessen as the company's "rock star." The events of this period landed Andreessen, barefoot, on the cover of Time magazine. The IPO helped kickstart widespread investment in internet companies that created the dot-com bubble.
Netscape advertised that "the web is for everyone" and stated one of its goals was to "level the pl
Netscape Navigator 2
The support for plugins led to the development of a number of popular plugins to extend Navigator's functionality. Acrobat Amber - Released in early 1996 by Adobe Systems, it allowed for a pdf to be streamed. Lightning Strike - Released by Inifinet, it offered non-standard real-time wavelet compression RealAudio Player MovieStar - Released by Intelligence at Large, it offered streaming of QuickTime videos Macromedia Shockwave Netcloak Netscape had several easter eggs. Navigator 2 featured verse 12:10 from The Book of Mozilla; the bottom of "about:authors" read: All human actions are equivalent... and... all are on principle doomed... BooksErnst, Warren. Essential Netscape Navigator 2.0. Sams.net. ISBN 978-1-57521-065-0. James, Phil. Official Netscape Navigator 2.0 book: Windows edition: the definitive guide to the world's most popular Internet navigator. Research Triangle Park, NC: Ventana. ISBN 978-1-56604-347-2. Hamilton, Dennis. 60 minute guide to Netscape 2. Foster City, CA: IDG Books Worldwide. ISBN 978-0-7645-3008-1.
San Francisco the City and County of San Francisco, is the cultural and financial center of Northern California. San Francisco is the 13th-most populous city in the United States, the fourth-most populous in California, with 884,363 residents as of 2017, it covers an area of about 46.89 square miles at the north end of the San Francisco Peninsula in the San Francisco Bay Area, making it the second-most densely populated large US city, the fifth-most densely populated U. S. county, behind only four of the five New York City boroughs. San Francisco is part of the fifth-most populous primary statistical area in the United States, the San Jose–San Francisco–Oakland, CA Combined Statistical Area; as of 2017, it was the seventh-highest income county in the United States, with a per capita personal income of $119,868. As of 2015, San Francisco proper had a GDP of $154.2 billion, a GDP per capita of $177,968. The San Francisco CSA was the country's third-largest urban economy as of 2017, with a GDP of $907 billion.
Of the 500+ primary statistical areas in the US, the San Francisco CSA had among the highest GDP per capita in 2017, at $93,938. San Francisco was ranked 14th in the world and third in the United States on the Global Financial Centres Index as of September 2018. San Francisco was founded on June 29, 1776, when colonists from Spain established Presidio of San Francisco at the Golden Gate and Mission San Francisco de Asís a few miles away, all named for St. Francis of Assisi; the California Gold Rush of 1849 brought rapid growth, making it the largest city on the West Coast at the time. San Francisco became a consolidated city-county in 1856. San Francisco's status as the West Coast's largest city peaked between 1870 and 1900, when around 25% of California's population resided in the city proper. After three-quarters of the city was destroyed by the 1906 earthquake and fire, San Francisco was rebuilt, hosting the Panama-Pacific International Exposition nine years later. In World War II, San Francisco was a major port of embarkation for service members shipping out to the Pacific Theater.
It became the birthplace of the United Nations in 1945. After the war, the confluence of returning servicemen, significant immigration, liberalizing attitudes, along with the rise of the "hippie" counterculture, the Sexual Revolution, the Peace Movement growing from opposition to United States involvement in the Vietnam War, other factors led to the Summer of Love and the gay rights movement, cementing San Francisco as a center of liberal activism in the United States. Politically, the city votes along liberal Democratic Party lines. A popular tourist destination, San Francisco is known for its cool summers, steep rolling hills, eclectic mix of architecture, landmarks, including the Golden Gate Bridge, cable cars, the former Alcatraz Federal Penitentiary, Fisherman's Wharf, its Chinatown district. San Francisco is the headquarters of five major banking institutions and various other companies such as Levi Strauss & Co. Gap Inc. Fitbit, Salesforce.com, Reddit, Inc. Dolby, Weebly, Pacific Gas and Electric Company, Pinterest, Uber, Mozilla, Wikimedia Foundation and Weather Underground.
It is home to a number of educational and cultural institutions, such as the University of San Francisco, University of California, San Francisco, San Francisco State University, the De Young Museum, the San Francisco Museum of Modern Art, the California Academy of Sciences. As of 2019, San Francisco is the highest rated American city on world liveability rankings; the earliest archaeological evidence of human habitation of the territory of the city of San Francisco dates to 3000 BC. The Yelamu group of the Ohlone people resided in a few small villages when an overland Spanish exploration party, led by Don Gaspar de Portolà, arrived on November 2, 1769, the first documented European visit to San Francisco Bay. Seven years on March 28, 1776, the Spanish established the Presidio of San Francisco, followed by a mission, Mission San Francisco de Asís, established by the Spanish explorer Juan Bautista de Anza. Upon independence from Spain in 1821, the area became part of Mexico. Under Mexican rule, the mission system ended, its lands became privatized.
In 1835, Englishman William Richardson erected the first independent homestead, near a boat anchorage around what is today Portsmouth Square. Together with Alcalde Francisco de Haro, he laid out a street plan for the expanded settlement, the town, named Yerba Buena, began to attract American settlers. Commodore John D. Sloat claimed California for the United States on July 7, 1846, during the Mexican–American War, Captain John B. Montgomery arrived to claim Yerba Buena two days later. Yerba Buena was renamed San Francisco on January 30 of the next year, Mexico ceded the territory to the United States at the end of the war. Despite its attractive location as a port and naval base, San Francisco was still a small settlement with inhospitable geography; the California Gold Rush brought a flood of treasure seekers. With their sourdough bread in tow, prospectors accumulated in San Francisco over rival Benicia, raising the population from 1,000 in 1848 to 25,000 by December 1849; the promise of great wealth was so strong that crews on arriving vessels deserted and rushed off to the gold fields, leaving behind a forest of masts in San Francisco harbor.
Some of these 500 abandoned ships were used at times as storeships and hotels.