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A human computer, with microscope and calculator, 1952. It was not until the mid-20th century that the word acquired its modern definition; according to the Oxford English Dictionary, the first known use of the word computer was in a different sense, in a 1613 book called The Yong Mans Gleanings by the English writer Richard Brathwait: "I haue [] read the truest computer of Times, and the best ...
Human computers were involved in calculating ballistics tables during World War I. [38] Between the two world wars, computers were used in the Department of Agriculture in the United States and also at Iowa State College. [39] The human computers in these places also used calculating machines and early electrical computers to aid in their work ...
This machine invented the principle of the modern computer and was the birthplace of the stored program concept that almost all modern day computers use. [52] These hypothetical machines were designed to formally determine, mathematically, what can be computed, taking into account limitations on computing ability.
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.
A more interactive form of computer use developed commercially by the middle 1960s. In a time-sharing system, multiple teleprinter and display terminals let many people share the use of one mainframe computer processor, with the operating system assigning time slices to each user's jobs. This was common in business applications and in science ...
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January 2: Brad Cox, American computer scientist, and inventor of the Objective-C programming language (b. 1944) January 28: Alice Recoque, French computer scientist (b. 1929) February 1: Walter Savitch, American computer scientist and theoretical mathematician (b. 1943) February 6: Ioan Dzițac, Romanian computer scientist and mathematician (b ...
Battery life: Most of the tablets here tout an "all-day battery," meaning you should be able to use it for at least 10 hours before returning to the charger. Obviously there are lots of variables ...
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