History of Computers

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    The Z1

    The Z1 was developed by Konrad Zuse. It is considered to be the first programmable computer.
  • Atanasoff-Berry Computer

    Also known as ABC, the Atanasoff-Berry Computer was built by Professor John Vincent Atanasoff and graduate student Cliff Berry. It was the first digital computer.
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    The ENIAC

    The ENIAC was invented by J. Presper Eckert and John Mauchly. Athough it was not ruled as the first computer, many people consider it to be the first computer invented.
  • The EDSAC

    The EDSAC is considered the first computer with a stored program.
  • Electronic Controls Company

    Electronic Controls Company was the first computer company. It was founded by J. Presper Eckert and John Mauchly.
  • The Whirlwind Machine

    The Whirlwind Machine was the first computer build with a RAM. It was developed by MIT
  • Transistorized Experimental computer)

    TX-O was the first computer with a transistor.
  • The PDP-1

    The PDP-1 was released by Digital Equipment Corporation, and are considered the first minicomputers.
  • The Altair 8800

    The Altair 8800 was built by Ed Roberts. It was considered the first personal computer.
  • The Xerox Alto

    The Xerox Alto was the first computer with a workstation.
  • The IBM 5100

    The IBM 5100 is the first portable computer. The computer weighed 55 pounds and was released in September of 1975.
  • Apple I

    The first Apple Computer was designed by Steve Wozniak.
  • The 701

    The 701 was the first computer with a PC.
  • Compaq Portable

    The Compaq Portable was the first PC clone. It was released on March 1983.
  • M2500 XL/2 and M4020 SX computers

    Radio Shack released M2500 XL/2 and M4020 SX computers with the MPC standard,