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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.
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.
The machine was fairly representative of first-generation valve-driven computer designs.It used mercury acoustic delay lines as its primary data storage, with a typical capacity of 768 20-bit words, supplemented by a parallel disk-type device with a total 4096-word capacity and an access time of 10 milliseconds.
Subsequently, the first computer programmers used binary code to instruct computers to perform various tasks. Nevertheless, the process was very arduous. Nevertheless, the process was very arduous. Computer programmers had to provide long strings of binary code to tell the computer what kind of data it should store.
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 ...
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 ...
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
John William Mauchly (/ ˈ m ɔː k l i / MAWK-lee; August 30, 1907 – January 8, 1980) was an American physicist who, along with J. Presper Eckert, designed ENIAC, the first general-purpose electronic digital computer, as well as EDVAC, BINAC and UNIVAC I, the first commercial computer made in the United States.