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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 following computers also introduced significant advancements to the home computer segment: 1979: TI-99/4, first home computer with a 16-bit processor and first to add hardware supported sprite graphics; 1979: Atari 8-bit computers (N. Am.), first computers with custom chip set and programmable video chip and built-in audio output
He created the first commercially available portable computer, the Osborne 1, released in April 1981. It weighed 24.5 pounds (12 kg), cost US$1795—just over half the cost of a computer from other manufacturers with comparable features—and ran the popular CP/M 2.2 operating system. [7] It was designed to fit under an airline seat. [8]
The first digital electronic computer was developed in the period April 1936 - June 1939, in the IBM Patent Department, Endicott, New York by Arthur Halsey Dickinson. [35] [36] [37] In this computer IBM introduced, a calculating device with a keyboard, processor and electronic output (display). The competitor to IBM was the digital electronic ...
Henry Edward Roberts (September 13, 1941 – April 1, 2010) was an American engineer, entrepreneur and medical doctor who invented the first commercially successful personal computer in 1974. [1] He is most often known as " the father of the personal computer ."
Built the first digital freely programmable computer, the Z1. Built the first functional program-controlled computer, the Z3 in 1941. [59] The Z3 already used what later became known as Reverse Polish Notation, and it was proven to be Turing-complete in 1998. Produced the world's first commercial computer, the Z4.
America Online CEO Stephen M. Case, left, and Time Warner CEO Gerald M. Levin listen to senators' opening statements during a hearing before the Senate Judiciary Committee on the merger of the two ...
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. Unlike a modern personal computer, the Kenbak-1 was built of small-scale integrated circuits, and did not ...