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This is called "Model K" it was built in 1937. George Stibitz built this on his kitchen table. Fun fact it was built when Germany made the z2 computer.

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David Packard and Bill Hewlett found their company in a California garage. The first project that they worked on was hp 200A Audio Oscillator. This machine became very popular. Walt Disney ordered 8 of these 200b's.

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In 1939, Bell Telephones Labatories completes this calculator, it was designed by scientist George Stibitz. In 1940 Stibitz the CNC at a American Mathematics Social conference held at Dartmouth Collage.

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The Z3 was built by Germany by Konrad

Zuse. He worked insolation from development elsewhere and it was use for 2,300 relays. Sadly it was destroyed by bombs on Berlin in late 1943. They displayed it in a museum in Munich.

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After they had proof in 1939 Professor John Vincent Atanasoff received full funds to start the full scaled machine at lowa State College. The machine was designed and built by Atanasoff and graduated student Clifford Berry between 1939 and 1942.

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The us army ask Bell Laboratories to design a machine to assist in testing it's M-9 gun direction, a large computer that aims large guns to there targets. Later on they made Bell lab model ll.

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Designed by british engineer Tommy Flowers. This is designed to break the complex. Lorenx ciphers used by the Nazis during World War ll. A total of ten Colossi were delivered as they used 2,500 vacuum tubes.

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Harvard Mark 1 is completed

Conceived by Harvard physics professor Howard Aiken, and designed and built by IBM, the Harvard Mark 1 is a room-sized, relay-based calculator. The machine had a fifty-foot long camshaft running the length of machine that synchronized the machine's thousands of component parts and used 3,500 relays. The Mark 1 produced mathematical tables but was soon superseded by electronic stored-program computers.

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1944 | Timeline of Computer History | Computer History Museum

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Harvard Mark 1 is completed Conceived by Harvard physics professor Howard Aiken, and designed and built by IBM, the Harvard Mark 1 is a room-sized, relay-based calculator. The machine had a fifty-foot long camshaft running the length of machine that synchronized the machine's thousands of component parts and used 3,500 relays.

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In 1945, John von Neumann wrote the first draft reported on the EDVAC. John outlined the architecture of the stored-program computer, also including the electronic was storage of programming information and data. It eliminated the need for more clumsy methods of programming plugboards, punch cards and paper.

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A inspiring summer school on computing at the University of Pennsylvania's moore school was researched institutions in the US. France the UK and Germany as well. Earlier computer designer John von Neumann howard Aiken, J. Presper Eckert and John Mauchly, as well as , mathematicians including Derrick Lehmer, George Stibitz and so many more.