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John Napier invented the "Napier Bones" which are basically used to solve complex calculations.
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The Pascal computer is named after him. His machine could add numbers up to 8 digits.
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Improvements were made to machines. They could now be sold commercially. They were all simple wheel and lever machines.
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Joseph-Maire Jacquard invented a weaving loom that used punched cards to duplicate specific ideas.
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Charles Babbage created the "difference engine."
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Herman Hollerith created the punched card calculator.
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Lee De Forest invented the electronic tube (vaccuum tube). This made electronic computers develop quicker.
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Machines were created to break German encryption codes.
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Howard H. Aiken developed the first computer with a programmed controlled calculator. Very close to being fully operational computer.
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A computer called Colossus was completed in Great Britain.
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100,000 calculations per second
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The development of the transistor became significant in 1947. The transistor could do the work of several tubes at once and was smaller than a postage stamp.
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First computer to use magnetic tape for storage.
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First computer produced for business. Computers were only used for universities and government before.
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The Cray 1 was the first supercomputer that was available for purchase. The Cray 1 could do 150 million calculations per second.
