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The Kenbak-1, released in early 1971, is considered by the Computer History Museum to be the world's first personal computer. It was designed and invented by John Blankenbaker of Kenbak Corporation in 1970, and was first sold in early 1971.
The ENIAC (Electronic Numerical Integrator And Computer) was the first electronic general-purpose computer, announced to the public in 1946. It was Turing-complete, [ 45 ] digital, and capable of being reprogrammed to solve a full range of computing problems.
The Compaq Portable was the first PC-compatible portable computer created in 1982. The first shipment was in March 1983 and was priced at US$2,995 (equivalent to $9,759 in 2024). The Compaq Portable folded up into a luggable case the size of a portable sewing machine, similar in size to the Osborne 1.
A human computer, with microscope and calculator, 1952. It was not until the mid-20th century that the word acquired its modern definition; according to the Oxford English Dictionary, the first known use of the word computer was in a different sense, in a 1613 book called The Yong Mans Gleanings by the English writer Richard Brathwait: "I haue [] read the truest computer of Times, and the best ...
First recorded use of this device was in 1889 in the Office of the Surgeon General of the Army. In 1896 Hollerith introduced improved model. [41] 1889 United States: Dorr Felt invented the first printing desk calculator. 1890 United States Sweden Russia: A multiplying calculator more compact than the Arithmometer entered mass production.
The Computer History in time and space, Graphing Project, an attempt to build a graphical image of computer history, in particular operating systems. The Computer Revolution/Timeline at Wikibooks "File:Timeline.pdf - Engineering and Technology History Wiki" (PDF). ethw.org. 2012. Archived (PDF) from the original on 2017-10-31
The oldest known recordings of computer generated music were played by the Ferranti Mark 1 computer. The Mark 1 is a commercial version of the Manchester Mark 1 machine from the University of Manchester. The music program was written by Christopher Strachey. 1951: US EDVAC (electronic discrete variable computer). The first computer to use ...
Three programs were written for the computer. The first, consisting of 17 instructions, was written by Kilburn, and so far as can be ascertained first ran on 21 June 1948. [39] It was designed to find the highest proper factor of 2 18 (262,144) by trying every integer from 2 18 − 1 downwards. The divisions were implemented by repeated ...