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First Mechanical Computer
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In 1822, Charles Babbage conceptualized and began developing the Difference Engine, considered to be the first automatic computing machine. -
First Programmable Computer
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The ZI was created by German Konrad Zuse in his parents living room between 1936 and 1938.It is considered to be the first electro-mechanical binary programmable computer, and the first really functional modern computer. -
The Turing Machine
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The Turing machine was first proposed by Alan Turing in 1936 and became the foundation for theories about computing and computers.The machine was a device that printed symbols on paper tape in a manner that emulated a person following a series of logical instructions. -
First Digital Computer
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Short for Atanasoff-Berry Computer, the ABC began development by professor John Vincent Atanasoff and graduate student Cliff Berry in 1937.Its development continued until 1942 at the Iowa State College ( now Iowa State University). -
First Electric Programmable Computer
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The Colossus was the first electric programmable computer, developed by Tommy Flowers, and first demonstrated in December 1934.The Colossus was created to help the British code breakers read encrypted German messages. -
First Stored Program Computer
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The early British computer known as the EDSAC is considered to be the first stored program electronic computer.The computer performed its first calculation on May 6, 1949 and was the computer that ran the first graphical computer game, nicknamed "Baby". -
First Computer Company
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The first computer company was the Electronic Controls Company and was founded in 1949 by J. Presper Eckert and John Mauchly, the same individuals who helped created the ENIAC computer. -
First Commercial Computer
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In 1942, Konrad Zuse begin working on the Z4 that later became the first commercial computer. The computer was sold to Eduard Stiefel, a mathematician of the Swiss Federal Institute of Technology Zurich on July 12, 1950. -
IBM's First Computer
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On April 7, 1953 IBM publicly introduced the 701; its first commercial scientific computer. -
The First Computer With RAM
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MIT introduces the Whirlwind Machine on March 8, 1955, a revolutionary computer that was the first digital computer with magnetic core RAM and real-time graphics. -
The First Transistor Computer
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The TX-O is the first is the first transistorized computer to be demonstrated at the Massachusetts Institute of Technology in 1956. -
The First Minicomputer
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In 1960, Digital Equipment Corporation released its first of many PDP computers, the PDP-1. -
The First Desktop And Mass-Market Computer
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In 1964, the first desktop computer, the Programma 101, was unveiled to the public at the New York World's Fair. It was invented by Pier Giorgio Perotto and manufactured by Olivetti. About 44,000 Programma 101 computers were sold, each with a price tag of $3,200. -
The First Microprocessor
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Intel introduces the first microprocessor, the Intel 4004 on November 15, 1971. -
The First Workstation
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Although it was never sold, the first workstation is considered to be the Xerox Alto, introduced in 1974. The computer was revolutionary for its time and included a fully functional computer, display, and mouse. The computer operated like many computers today utilizing windows, menus and icons as an interface to its operating system. Many of the computer's capabilities were first demonstrated in The Mother of All Demos by Douglas Engelbart on December 9, 1968.
