History of computers timeline by Rithika Nallamolu https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t by a humans en-us 2021-04-07 14:18:01 UTC 2021-04-09 15:49:15 UTC hello@padlet.com https://padlet.net/icons/png/1f4bb.png Abacus dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1399841346 Abacus are beads on rods to count and calculate.

30000 BC]]> 2021-04-09 13:31:05 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1399841346 Jacquard Loom dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1399864737 The first stored program~ metal card.

1801]]> 2021-04-09 13:36:24 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1399864737 Slide Rule dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1399872515 It is based on Napier's rules for logarithms.

1620 AD]]> 2021-04-09 13:38:04 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1399872515 Charles Babbage dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1399948598 ‣ Difference Engine
◦ Analytical Engine~ Stored numbers on metal punch cards, accurate to 6 decimal places, powered by steam.

1822~1833]]> 2021-04-09 13:53:36 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1399948598 1st Generation dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400005102 1st generation computers used vacuum Tubes with no air inside to protect circuitry.

1941]]> 2021-04-09 14:06:09 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400005102 Grace Hopper dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400024737 ‣ Programmed UNIVAC
◦ Recipient of Computer Science's first "Man of the Year Award

1952]]> 2021-04-09 14:10:29 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400024737 First Computer Bug dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400067595 Moth stuck in relay switch. Grace Hopper called it debugging in a computer.

1945
]]> 2021-04-09 14:19:28 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400067595 First Transistor dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400077856 Used silicon, won Nobel prize, on-off switch.

1948]]> 2021-04-09 14:21:48 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400077856 UNIVAC dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400085558 First fully electronic digital computer built in the U.S., Created at the University of Pennsylvania, weighed 30 tons, contained 18,000 vacuum tubes, Cost $487,000.

1951]]> 2021-04-09 14:23:29 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400085558 2nd Generation dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400102522 2nd Generation computers 
replaced vacuum tubes with transistors.

1956~1963
]]> 2021-04-09 14:27:10 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400102522 Operating Systems dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400108301 Instructions for a 
computer that are loaded each time the computer is turned on.
]]> 2021-04-09 14:28:27 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400108301 3rd Generation dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400118973 3rd Generation computers used  Integrated Circuits that were made of transistors, resistors 
and capacitators integrated into one chip.

1964~1971
]]> 2021-04-09 14:30:49 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400118973 4th Generation dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400136090 4th Generation computers had microchips. Intel 4004 Microchip had 2,250  transistors.

1971]]> 2021-04-09 14:34:38 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400136090 MITS Altair dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400404989 ‣ 256 bytes of memory
◦ 2 MHz Intel 8080 chip
‣ cost $395—$495

1975]]> 2021-04-09 15:33:38 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400404989 Apple Computers dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400412141 released Apple II 
computer that was used in most schools. First commercial computer with Graphic User Interface GUI and Mouse.

1977 
]]> 2021-04-09 15:35:15 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400412141 IBM PC dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400449030 ‣ First wide selling personal computer
◦ 8088 Microchip 29,000 transistors
‣ 256 K RAM 
◦ 1 or 2 floppy disk drives

1981]]> 2021-04-09 15:43:43 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400449030 dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400458839 ‣ Computers in most homes
◦ Faster and less expensive
‣ Windows 95 was 1st decent GUI

1990]]> 2021-04-09 15:45:54 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400458839 dEprESseDmRpoTaTO https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400464872 ‣ Great Increase in speed, storage and memory
◦ Networking and Internet Capabilities
‣ CD Drives
◦ Cell Phones & Wireless Technology
]]> 2021-04-09 15:47:14 UTC https://padlet.com/dEprESseDmRpoTaTO/ozqz5ryowbqd650t/wish/1400464872