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UNIVAC I
The UNIVAC I (Universal Automatic Computer I) was the first general-purpose electronic digital computer design for business application produced in the United States. It was designed principally by J. Presper Eckert and John Mauchly, the inventors of the ENIAC. Design work was started by their company, Eckert–Mauchly Computer Corporation (EMCC), and was completed after the company had been acquired by Remington Rand (which later became part of Sperry Corporation, Sperry, now Unisys). In the years before successor models of the UNIVAC I appeared, the machine was simply known as "the UNIVAC".Johnson, L.R., "Coming to grips with Univac," IEEE Annals of the History of Computing, vol. 28, no. 2, pp. 32, 42, April–June 2006. The first UNIVAC was accepted by the United States Census Bureau on March 31, 1951, and was dedicated on June 14 that year. The fifth machine (built for the United States Atomic Energy Commission, U.S. Atomic Energy Commission) was used by CBS to predict the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Univac I Census Dedication
UNIVAC (Universal Automatic Computer) was a line of electronic digital stored-program computers starting with the products of the Eckert–Mauchly Computer Corporation. Later the name was applied to a division of the Remington Rand company and successor organizations. The BINAC, built by the Eckert–Mauchly Computer Corporation, was the first general-purpose computer for commercial use, but it was not a success. The last UNIVAC-badged computer was produced in 1986. History and structure J. Presper Eckert and John Mauchly built the ENIAC (Electronic Numerical Integrator and Computer) at the University of Pennsylvania's Moore School of Electrical Engineering between 1943 and 1946. A 1946 patent rights dispute with the university led Eckert and Mauchly to depart the Moore School to form the Electronic Control Company, later renamed Eckert–Mauchly Computer Corporation (EMCC), based in Philadelphia, Pennsylvania. That company first built a computer called BINAC (BINary Automat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ThoughtCo
Dotdash Meredith (formerly The Mining Company, About.com and Dotdash) is an American digital media company based in New York City. The company publishes online articles and videos about various subjects across categories including health, home, food, finance, tech, beauty, lifestyle, travel, and education. It operates brands including Verywell, Investopedia, ''People'', '' The Balance'', Byrdie, MyDomaine, '' Brides'', The Spruce, Simply Recipes, Serious Eats, Liquor.com, Lifewire, TripSavvy, TreeHugger, and ThoughtCo. In August 2012, About.com became a property of IAC, owner of Ask.com and numerous other online brands, and its revenue is generated by advertising. In addition to its Manhattan headquarters, Dotdash Meredith maintains offices elsewhere in the New York metropolitan area, as well as in Des Moines, Iowa, and Birmingham, Alabama. The company took its Dotdash Meredith name in 2021 after IAC acquired Meredith Corporation and Time Inc. Time had merged with Warner C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twin-engine
A twinjet or twin-engine jet is a jet aircraft powered by two engines. A twinjet is able to fly well enough to land with a single working engine, making it safer than a single-engine aircraft in the event of failure of an engine. Fuel efficiency of a twinjet is better than that of aircraft with more engines. These considerations have led to the widespread use of aircraft of all types with twin engines, including airliners, fixed-wing military aircraft, and others. Aircraft configurations There are three common configurations of twinjet aircraft. The first, common on large aircraft such as airliners, has a podded engine usually mounted beneath, or occasionally above or within, each wing. Most notable examples of such a configuration are the Boeing 737 and Airbus A320. The second has one engine mounted on each side of the rear fuselage, close to its empennage, used by many business jets, although some airliners like the Fokker 70, Douglas DC-9 and COMAC ARJ21 utilise such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northrop Aircraft
Northrop Corporation was an American aircraft manufacturer from its formation in 1939 until its 1994 merger with Grumman to form Northrop Grumman. The company is known for its development of the flying wing design, most successfully the B-2 Spirit stealth bomber.Parker, Dana T. ''Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II,'' pp. 93-106, Cypress, CA, 2013. . History Jack Northrop founded three companies using his name. The first was the Avion Corporation in 1928, which was absorbed in 1929 by the United Aircraft and Transport Corporation as a subsidiary named "Northrop Aircraft Corporation" (and later became part of Boeing). The parent company moved its operations to Kansas in 1931, and so Northrop, along with Donald Douglas, established a "Northrop Corporation" located in El Segundo, California, which produced several successful designs, including the Northrop Gamma and Northrop Delta. However, labor difficulties led to the dissolution ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BINAC
BINAC (Binary Automatic Computer) is an early electronic computer that was designed for Northrop Corporation, Northrop Aircraft Company by the Eckert–Mauchly Computer Corporation (EMCC) in 1949. J. Presper Eckert, Eckert and Mauchly had started the design of EDVAC at the University of Pennsylvania, but chose to leave and start EMCC, the first computer company. BINAC was their first product, the first stored-program computer in the United States; BINAC is also sometimes claimed to be the world's first commercial digital computer even though it was limited in scope and never fully functional after delivery. Architecture The BINAC was a bit-serial binary numeral system, binary computer with two independent Central processing unit, CPUs, each with its own 512-Word (data type), word acoustic delay-line memory#Mercury delay lines, mercury delay-line computer storage, memory. The CPUs continuously compared results to check for errors caused by hardware failures. It used approximately 7 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short Code (computer Language)
Short Code was one of the first higher-level languages developed for an electronic computer. Unlike machine code, Short Code statements represented mathematic expressions rather than a machine instruction. Also known as automatic programming, the source code was not compiled but executed through an interpreter to simplify the programming process. The execution time was, naturally, much slower. History Short Code was proposed by John Mauchly in 1949 and originally known as Brief Code. William Schmitt implemented a version of Brief Code in 1949 for the BINAC computer, though it was never debugged and tested. The following year Schmitt implemented a new version of Brief Code for the UNIVAC I, where it was now known as Short Code (also Short Order Code). A revised version of Short Code was developed in 1952 for the Univac II by A. B. Tonik and J. R. Logan. While Short Code represented expressions, the representation itself was not direct and required a process ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard Computation Laboratory
Harvard University is a private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher learning in the United States. Its influence, wealth, and rankings have made it one of the most prestigious universities in the world. Harvard was founded and authorized by the Massachusetts General Court, the governing legislature of colonial-era Massachusetts Bay Colony. While never formally affiliated with any denomination, Harvard trained Congregational clergy until its curriculum and student body were gradually secularized in the 18th century. By the 19th century, Harvard emerged as the most prominent academic and cultural institution among the Boston elite. Following the American Civil War, under Harvard president Charles William Eliot's long tenure from 1869 to 1909, Harvard developed multiple professional schools, which transformed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grace Hopper
Grace Brewster Hopper (; December 9, 1906 – January 1, 1992) was an American computer scientist, mathematician, and United States Navy rear admiral. She was a pioneer of computer programming. Hopper was the first to devise the theory of machine-independent programming languages, and used this theory to develop the FLOW-MATIC programming language and COBOL, an early high-level programming language still in use today. She was also one of the first programmers on the Harvard Mark I computer. She is credited with writing the first computer manual, "A Manual of Operation for the Automatic Sequence Controlled Calculator." Before joining the Navy, Hopper earned a Ph.D. in both mathematics and mathematical physics from Yale University and was a professor of mathematics at Vassar College. She left her position at Vassar to join the United States Navy Reserve during World War II. Hopper began her computing career in 1944 as a member of the Harvard Mark I team, led by Howard H. Aiken. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Betty Holberton
Frances Elizabeth Holberton (March 7, 1917 – December 8, 2001) was an American computer scientist who was one of the six original programmers of the first general-purpose electronic digital computer, ENIAC (Electronic Numerical Integrator And Computer). The other five ENIAC programmers were Jean Bartik, Ruth Teitelbaum, Kathleen Antonelli, Marlyn Meltzer, and Frances Spence. Holberton invented breakpoints in computer debugging. Early life and education Holberton was born Frances Elizabeth Snyder in Philadelphia, Pennsylvania in 1917. Her father was John Amos Snyder (1884–1963), her mother was Frances J. Morrow (1892–1981), and she was the third child in a family of eight children. Holberton studied journalism, because its curriculum let her travel far afield. Journalism was also one of the few fields open to women as a career in the 1940s. She stated that on her first day of classes at the University of Pennsylvania, her math professor asked her if she wouldn't be bette ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Totalisator
The American Totalisator Company, now known as AmTote International and commonly referred to as AmTote, specializes in totalisator equipment used to manage and control parimutuel betting at horse racing, greyhound racing, and jai-alai facilities. The company was founded by Harry L. Straus, a computer engineer from Baltimore, who became interested in developing a fairer system of calculating and displaying odds and payouts on parimutuel betting after an incident at a Maryland racetrack in 1927. When a horse listed at 12:1 odds won, but paid off at 4:1, Straus recognized the need for a more accurate and transparent system. He began developing his innovative machine, the totalisator, also known as the "tote board" using telephone relays in 1928. Straus' new company installed its first equipment at Pimlico Race Course in Baltimore, Maryland, which displayed odds and payouts on illuminated boards, now commonly known as "tote boards". In 1933, American Totalisator installed its fir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry L
Harry may refer to: Television * ''Harry'' (American TV series), 1987 comedy series starring Alan Arkin * ''Harry'' (British TV series), 1993 BBC drama that ran for two seasons * ''Harry'' (New Zealand TV series), 2013 crime drama starring Oscar Kightley * ''Harry'' (talk show), 2016 American daytime talk show hosted by Harry Connick Jr. People and fictional characters *Harry (given name), a list of people and fictional characters with the given name, including **Prince Harry, Duke of Sussex Prince Harry, Duke of Sussex, (Henry Charles Albert David; born 15 September 1984) is a member of the British royal family. As the younger son of King Charles III and Diana, Princess of Wales, he is fifth in the line of succession to t ... (born 1984) * Harry (surname), a list of people with the surname Other uses *"Harry", the tunnel used in the Stalag Luft III escape ("The Great Escape") of World War II * ''Harry'' (album), a 1969 album by Harry Nilsson * Harry (derogatory te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screenshot 20241204-184404 YouTube
A screenshot (also known as screen capture or screen grab) is an analog or digital image that shows the contents of a computer display. A screenshot is created by a (film) camera shooting the screen or the operating system or software running on the device powering the display. Screenshot techniques Digital techniques The first screenshots were created with the first interactive computers around 1960. Through the 1980s, computer operating systems did not universally have built-in functionality for capturing screenshots. Sometimes text-only screens could be dumped to a text file, but the result would only capture the content of the screen, not the appearance, nor were graphics screens preservable this way. Some systems had a BSAVE command that could be used to capture the area of memory where screen data was stored, but this required access to a BASIC prompt. Systems with composite video output could be connected to a VCR, and entire screencasts preserved this way. Most sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
