https://padlet.com/gavinliu031/d6lef8rh10ymw3wf Made with wonder en-us 2021-04-07 17:34:05 UTC 2021-04-10 03:05:38 UTC hello@padlet.com https://padlet.net/icons/png/1f60e.png gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401897032 The abacus was one of the most early forms of counting.]]> 2021-04-10 02:02:05 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401897032 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401903501 Based on Napier's rules for logarithm.]]> 2021-04-10 02:09:14 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401903501 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401904135 first stored metal programs cards.]]> 2021-04-10 02:09:59 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401904135 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401931242 Used Vacuum tubes to allow no air inside for prevent circuitry.]]> 2021-04-10 02:41:39 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401931242 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401934301 Moth stuck in relay switch. Grace Hopper called it debugging a computer.]]> 2021-04-10 02:45:20 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401934301 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401935405 Programmed UNIVAC
Science's first "Man of the year award".]]> 2021-04-10 02:46:47 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401935405 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401935970 Used silicon, won Nobel Prize, on-off switch.]]> 2021-04-10 02:47:36 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401935970 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401938102 First fully electronic digital computer built in the U.S., created at the University at Pennsylvania.]]> 2021-04-10 02:49:59 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401938102 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401939392 Computers vacuum tubes are replaced with transistors.]]> 2021-04-10 02:51:12 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401939392 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401940381 Instructions for a computer are loaded each time the computer is turned on.]]> 2021-04-10 02:52:15 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401940381 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401942241 Used integrated circuits that were made of transistors, resistors, and capacitors integrated into one chip.]]> 2021-04-10 02:53:55 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401942241 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401943627 Had microchips, Intel 4004 Microchip had 2,250 transistors.]]> 2021-04-10 02:55:22 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401943627 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401944595 256 bytes of memory
2MHz intel 8080 chip
Cost 395-495 dollars.]]> 2021-04-10 02:56:31 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401944595 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401945478 Apple II computers are used in most schools.]]> 2021-04-10 02:57:30 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401945478 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401946113 First wide selling personal computer
8088 Microchip, 29000 transistors.
256 K RAM
1 or 2 floppy disk dives.]]> 2021-04-10 02:58:15 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401946113 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401947614 There are computers in most homes. They are faster and less expensive. Windows 95 was the fist decent GUI.]]> 2021-04-10 02:59:55 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401947614 gavinliu031 https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401951231 Great Increase in speed, storage, and memory. Networking and Internet capabilities. CD drives are now used. Cell phones and wireless tech are widespread.]]> 2021-04-10 03:04:16 UTC https://padlet.com/gavinliu031/d6lef8rh10ymw3wf/wish/1401951231