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[3] On 18 April 1970, the first computer was produced. It was named CID 201 following the earlier digital watch CID 101. It could do 25 000 additions/second. Its memory held 4 096 12-bit words. It was considered a third-generation computer. It could be programmed in LEAL (Lenguaje Algorítmico, "algorithmic language"). [2]
The Kenbak-1 is considered by the Computer History Museum, [2] the Computer Museum of America [3] and the American Computer Museum [4] to be the world's first "personal computer", [5] invented by John Blankenbaker (born 1929) of Kenbak Corporation in 1970 and first sold in early 1971. [6]
The Xerox Alto is a computer system developed at Xerox PARC (Palo Alto Research Center) in the 1970s. It is considered one of the first workstations or personal computers, and its development pioneered many aspects of modern computing.
The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sharing system in which one large processor is shared by many individuals.
The Z4 was arguably the world's first commercial digital computer, and is the oldest surviving programmable computer. [1]: 1028 It was designed, and manufactured by early computer scientist Konrad Zuse's company Zuse Apparatebau, for an order placed by Henschel & Son, in 1942; though only partially assembled in Berlin, then completed in Göttingen in the Third Reich in April 1945, [2] but not ...
Joseph Carl Robnett Licklider (/ ˈ l ɪ k l aɪ d ər /; March 11, 1915 – June 26, 1990), known simply as J. C. R. or "Lick", was an American psychologist [3] and computer scientist who is considered to be among the most prominent figures in computer science development and general computing history.
It was the world's first working programmable, fully automatic digital computer. [3] The Z3 was built with 2,600 relays, implementing a 22-bit word length that operated at a clock frequency of about 5–10 Hz. [1] Program code was stored on punched film. Initial values were entered manually. [4] [5] [6]: 32–37 The Z3 was completed in Berlin ...
The Ferranti Mark 1 was "the tidied up and commercialised version of the Manchester Mark I". [3] The first machine was delivered to the Victoria University of Manchester in February 1951 [ 4 ] (publicly demonstrated in July) [ 5 ] [ 6 ] ahead of the UNIVAC I which was delivered to the United States Census Bureau in late December 1952, having ...