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en.wikipedia.org/wiki/Computer

A computer is a device that can be instructed to carry out an arbitrary set of arithmetic or logical .... All the parts for his machine had to be made by hand — this was a major problem for a device with thousands of parts. ... Early digital computers were electromechanical; electric switches drove mechanical relays to perform the ...

en.wikipedia.org/wiki/History_of_personal_computers

The history of the personal computer as a mass-market consumer electronic device began with ... Early personal computers – generally called microcomputers – were sold often in electronic kit form and in limited .... It was made by CTC (now known as Datapoint) and was a complete system in a small case bearing the ...

www.computerhope.com/issues/ch000984.htm

Jun 16, 2017 ... The first mechanical computer, created by Charles Babbage in 1822, .... About 44,000 Programma 101 computers were sold, each with a price ...

www.computerhistory.org/timeline/computers

After the war, Herzstark's Curta made history as the smallest all-mechanical, ... Among the lecturers were early computer designers like John von Neumann, ...

www.history.com/topics/inventions/invention-of-the-pc

The earliest electronic computers were not “personal” in any way: They were ... These innovations made it cheaper and easier to manufacture computers than ...

www.livescience.com/20718-computer-history.html

Sep 8, 2015 ... The history of computers starts with industrial and governmental needs, which led to huge machines and eventually the Internet, mobile phones ...

overtheair.org/blog/2012/04/when-was-the-first-computer-invented

Apr 27, 2012 ... First mechanical computer or automatic computing engine concept. In 1822 ... The Colossus was created to help the British code breakers read ...

www.ptc.dcs.edu/moody/comphistory/comphistory_print.html

A computer is a machine that works with data and information in the form of ... About 50 models were constructed and were made of wood, ivory, ebony, and ...

www.historylearningsite.co.uk/inventions-and-discoveries-of-the-twentieth-century/the-personal-computer

The microchip also lead to computers being made that were small enough to get into the average sized room in a house. By 1970, one microchip could contain ...