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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]
Evelyn Berezin was an American computer designer who was responsible for the creation of the first airline reservation systems [2] in addition to the original word processor [3] and lived from April 12th 1925 to December 8th of 2018. [4]
The Manchester Baby, also called the Small-Scale Experimental Machine (SSEM), [1] was the first electronic stored-program computer.It was built at the University of Manchester by Frederic C. Williams, Tom Kilburn, and Geoff Tootill, and ran its first program on 21 June 1948.
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 ...
[2] [3] It was the first mass-produced computer in the world. [4] [5] Almost 2,000 systems were produced, the last in 1962, [6] [7] and it was the first computer to make a meaningful profit. [7] The first one was installed in late 1954 and it was the most popular computer of the 1950s. [8]
The IBM 305 RAMAC was the first commercial computer that used a moving-head hard disk drive (magnetic disk storage) for secondary storage. [1] The system was publicly announced on September 14, 1956, [2] [3] with test units already installed at the U.S. Navy and at private corporations. [2]