https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb 3,000 BC-21st century en-us 2021-04-25 20:40:07 UTC 2021-04-25 21:33:57 UTC hello@padlet.com lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456979615 Beads on rods to count and calculate]]> 2021-04-25 20:42:47 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456979615 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456984376 based on Napier's rules for logarithims ]]> 2021-04-25 20:46:17 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456984376 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456987389 first stored program- meatal cards]]> 2021-04-25 20:48:17 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456987389 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456989149 - difference engine
- analytical engine- stored numbers on metal punch cards, accurate to 6 decimal places, powered by steam]]> 2021-04-25 20:49:33 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456989149 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456994399 Moth stuck in relay switch. Grace Hopper called it debugging a computer. ]]> 2021-04-25 20:53:36 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456994399 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456998102 - programmed UNIVAC
- Recipient of computer scientist's first "Man of the year" award]]> 2021-04-25 20:56:26 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1456998102 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457012406 used silicon, won nobel prize, off-on switch]]> 2021-04-25 21:07:12 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457012406 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457014358 first fully electronic digital computer built in the US. Created at the universoty of Pennsylvania, wighed 30 tons, contained 18,000 vaccum tubes. Cost 487,000]]> 2021-04-25 21:08:42 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457014358 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457017500 - 256 bytes of memory
- 2 MHz intel 8080 chip
- cost 395-495 ]]> 2021-04-25 21:11:09 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457017500 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457024653 Released apple ll computer that was used in most schools
First commercial computer with Graphic User Interface GUI and mouse]]> 2021-04-25 21:15:44 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457024653 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457028328 - first wide selling personal computer
- 8088 microchip 29,000 transistors
- 256 K RAM
- 1 or 2 floppy disk drives]]> 2021-04-25 21:18:24 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457028328 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457033332 - computers were in most homes
- faster and less expensive 
- Windows 95 was 1st decent GUI]]> 2021-04-25 21:21:31 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457033332 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457034923 - great increase in speed, storage, and memory
- networking and internet capibilties 
- CD drives
- Cell phones and wirless technology ]]> 2021-04-25 21:22:27 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457034923 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457038204 computers used vaccum tubes with no air inside to protect circuitry ]]> 2021-04-25 21:25:08 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457038204 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457041821 computers replaced vaccum tubes with transistors]]> 2021-04-25 21:28:22 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457041821 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457044567 computers used integrated circuits that were made of transistors, resistors and capicitators integrated into one chip]]> 2021-04-25 21:30:54 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457044567 lilyjenkins668 https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457046568 computers had microchips
Intel 4004 microchip had 2,250 transistors]]> 2021-04-25 21:32:39 UTC https://padlet.com/lilyjenkins668/ay2hl049mxssk6sb/wish/1457046568