Timeline

Timeline

  • Submitted By: eristar1
  • Date Submitted: 01/18/2009 7:49 AM
  • Category: Technology
  • Words: 578
  • Page: 3
  • Views: 370

• 500 B.C. The Abacus Chinese invented the first computer
• !822-1871 The Analytical Engine Charles Babbage constructed the first mechanical computer
• 1889 The Fist Electrically- Driven Computer Designed data processing by Dr. Hollerith
• 1890 The Census Prototype model built for the U.S. Bureau
• 1939-1942 The Digital Electronic Computer Built in the basement of Iowa State of University campus by John Atansoff and graduate student
• 1945 ENIAC First large-scale digital electronic computer by John W. Mauchly
• 1943 Colossus built in a secret goaverment in Bletchley Park, Hertz, England under the direction of Professor, use for cracking codes
• 1960’s-1970’s The Mainframe Era the emergence of the personal computer
• 1971 The 4004, the first 4-bit microprocessor, is introduced by Intel. It boasts 2,000 transistors with a clock speed of up to 1 MHz.
• 1972 The first 8-bit microprocesser-the 8008- is released.
• 1975 Digital Research introduces CP/M – an operating system for the 8080 The combination of software and hardware becomes the basis for the standard computer
• 1976 The Apple I is built
• 1977 The apple II and Commodore PET are introduced. They use Z80 technology and become the basis for the home computer.
• 1978 Intel introduces a 16-bit processor, the 8086, and the 8088.
• 1981 The IBM personal computer is born; it contains a 4.7 MHz 8088 processor with 64 KB of RAM and MS-DOS 1.0.
• 1982 Intel completes development of the 80286 ---a 16-bit processor with 150,000 transistors MS-DOS 1.1 supports double-sided disks that hold 360 KB of data.
• 1983 IBM introduces the XT with a 10 MB hard drive. MS-DOS 2.0 arrives---- arrives—it features a directory structure
• 1984 The First computer with 80286 chip-the IBM AT ---- si sold. It is a 6 MHz machine with a 20 MB hard drive and high –density 1.2 MB floppy disk drive
• 1985 MS-DOS 3.2, which supports networks, is released....

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