Search results
Results From The WOW.Com Content Network
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 ...
ENIAC (/ ˈ ɛ n i æ k /; Electronic Numerical Integrator and Computer) [1] [2] was the first programmable, electronic, general-purpose digital computer, completed in 1945. [ 3 ] [ 4 ] Other computers had some of these features, but ENIAC was the first to have them all.
A TV screen served as the monitor. The VIC-20 became the first computer to sell 1 million units. July US Tandy released the TRS-80 Color Computer, based on the Motorola 6809E processor and using Microsoft BASIC as its programming language. It was the first Tandy computer to support color graphics, and also supported cartridge programs and games ...
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.
Their first transistorized computer, and the first in the world, was operational by 1953, [145] and a second version was completed there in April 1955. [145] The 1955 version used 200 transistors, 1,300 solid-state diodes, and had a power consumption of 150 watts. However, the machine did make use of valves to generate its 125 kHz clock ...
Computer Performance R; 1938 Germany: Personal research and development Berlin, Germany Konrad Zuse: Z1: 1.00 IPS [1] 1940 Z2: 1.25 IPS [2] 1941 Z3: 20.00 IPS [3] 1944 United Kingdom: Bletchley Park: Tommy Flowers and his team, Post Office Research Station: Colossus: 5.00 kIPS [4] 1945 United States: University of Pennsylvania: Moore School of ...
A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical aids to computation goes back centuries , if not millennia , the history of vacuum tube computers is confined to the middle of the 20th century.
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. Designed the first high-level ...