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Miloslav Ciz 2022-04-22 21:02:28 +02:00
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cheatsheets/computer history cheatsheet.txt
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-80000 ;technology; bone ribs probably used for counting
-2400 ;technology; abacus (a simple calculating tool) invented
-1115 ;technology; south-pointing chariot (device always pointing to south using cogwheels) invented in China
-500 ;theory; 1st known use of 0 by mathematicians in India
-300 ;theory; 1st use of binary number system by Indian mathematician Pingala
-200 ;technology; suanpan (a version of abacus, still in use) invented in China
-125 ;technology; 1st known analog computer by Greeks: Antikythera mechanism (used for tracking heavenly bodies using bronze gears)
-100 ;theory; 1st use of negative numbers by Chinese mathematicians
60 ;technology; 1st program by Heron of Alexandria: cart controlled by falling weight, "programmed" with strings
100 ;theory; 1st use of negative numbers by Chinese mathematicians
500 ;theory; 1st known use of 0 by mathematicians in India
724 ;technology; 1st fully mechanical clock by Chinese inventor Liang Lingzan
1822 ;theory; Joseph Fourier introduces Fourier transform
14.6.1822 ;technology; Charles Babbage proposes a mechanical computer to tabulate polynomial functions: Difference Engine