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The history of computing hardware spans the developments from early devices used for simple calculations to today's complex computers, encompassing advancements in both analog and digital technology. The first aids to computation were purely mechanical devices which required the operator to set up the initial values of an elementary arithmetic ...
The category of early computers contains the computer systems made in the early era (i.e., the era in modern computer history defined as the period from the late 1930s to the early 1960s) utilizing mechanical, vacuum tube, discrete transistor, or other pre-integrated circuit technology. See also. Category:History of computing
Charles Babbage KH FRS (/ ˈ b æ b ɪ dʒ /; 26 December 1791 – 18 October 1871) was an English polymath. [1] A mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer.
Eventually, the concept of numbers became concrete and familiar enough for counting to arise, at times with sing-song mnemonics to teach sequences to others. All known human languages, except the Piraha language, have words for at least the numerals "one" and "two", and even some animals like the blackbird can distinguish a surprising number of items.
First use of Herman Hollerith tabulating system in the Baltimore Department of Health. 1887 United States: Herman Hollerith filed a patent application for an integrating tabulator (granted in 1890), which could add numbers encoded on punched cards. First recorded use of this device was in 1889 in the Office of the Surgeon General of the Army.
The first computer to ship with the Intel 8080 microprocessor in April 1974 (as a pre-production unit) and one of the first commercially available computers with the 8080 in June 1974 (first production units shipped August 1974). Also included a built-in printer and early flat-panel plasma display. [16] [21] Sord Computer Corporation SMP80/08 ...
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.
Ada Lovelace (1815–1852) predicted the use of computers in symbolic manipulation. Ada Lovelace (Augusta Ada Byron) is credited as the pioneer of computer programming and is regarded as a mathematical genius. Lovelace began working with Charles Babbage as an assistant while Babbage was working on his "Analytical Engine", the first mechanical ...