Evolution of Computers

1276 Words May 9th, 2005 6 Pages
How many inventions in your lifetime can you think of that have changed everything in our society today? Computers have taken over today 's society. From everyday tasks to moving satellites in space, PCs have revolutionized almost everything in our society. Computers weren 't always this complicated though, and were around a long time before anyone even knew what the word "computer" meant.

The Abacus was the first known machine developed to help perform mathematical equations. From what researchers have discovered it was invented around 500 to 600 BC in an area around China or Egypt. This early tool was used to perform addition and subtraction and can still be found used in some of today 's Middle Eastern cultures. In 650 AD the Hindus
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In 1959 Jack Kilby, of Texas instruments, patented the first IC. The first commercial IC product was a hearing aid made and produced in 1963. IBM produced SABRE in 1964 for American Airlines. It 's a tracking system for ticket reservations, which helped speed up the reservation process considerably. DEC was the creator of the first "mini-computer" called the PDP-8. It was one of the first mini-computers made in mass production that pretty much anyone could afford at the time. In 1969 the DOD, Department of Defense, developed the precursor to the internet which was called ARPANet (Advanced Research Projects Agency Network). This was an experimental WAN (Wide Area Network) that would survive a nuclear war. (Sandiego 3)

Fourth generation PCs were the first to use microprocessors and were in the era of 1971 to 1987. Gilbert Hyatt patented the microprocessor in 1971. Later that year Ted Hoff, of Intel, introduced new microprocessors to use in calculators. IBM arrived with the first 8 in. floppy disk. They also started using these microprocessors in unison with LCD screens in calculators and watches. November of that year Intel introduced the first microcomputer to the public called the MCS-4. In 1972 Nolan Bushnell introduced the "arcade game" to the public with "Computer Space." Later that year he also created and introduced Atari and the game "Pong" to the public which became the