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Miloslav Ciz 2023-08-06 21:35:49 +02:00
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computer.md
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@ -43,10 +43,12 @@ Here is a list of notable computers.
| --------------------------------------- | ---- | ------------------------------------------------- | ------------------------------------------------- |
| [abacus](abacus.md) |-2500 | | one of the simplest digital counting tools |
| Antikythera mechanism | -125 | ~30 gears, largest with 223 teth | 1st known analog comp., by Greeks (mechanical) |
| [slide rule](slide_rule.md) | 1620 | | simple tool for multiplication and division |
| Shickard's calculating clock | 1623 | 17 wheels | 1st known calculator, could multiply, add and sub.|
| [Arithmometer](arithmometer.md) | 1820 | 6 digit numebrs | 1st commercial calculator (add, sub., mult.) |
| Difference Engine | 1822 | 8 digit numbers, 24 axles, 96 wheels | mech. digital comp. of polynomials, by Babbage |
| Analytical Engine design | 1837 | ~16K RAM, 40 digit numbers | 1st general purpose comp, not realized, by Babbage|
| [nomogram](nomogram.md) | 1884 | | graphical/geometrical tools aiding computation |
| [Z3](z3.md) | 1941 | 176B RAM, CPU 10Hz 22bit 2600 relays | 1st fully programmable electronic digital computer|
| [ENIAC](eniac.md) | 1945 | ~85B RAM, ~5KHz CPU, 18000 vaccum tubes | 1st general purpose computer |
| [PDP](pdp.md) 11 | 1970 | 4M RAM, CPU 1.25Mhz 16bit | legendary [mini](minicomputer.md) |