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John Napier invented a set of rods which have become known as Napiers bones that could be used to perform complex calculations.
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His machine could add numbers up to 8 digits
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Developed a weeving loom that used punched cards to replicate designs.
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this machine was called the "difference engine" a glorified adding and multiplying machine.
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a punched card calculator was created by him.
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by this time several machines had been built which rivaled the Analytical engine in complexity. These were true mechanical calculators.
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He completed the central component, or mill of his father's Analytical engine. it worked perfectly.
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invented the electronic tube.
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in 1939 the electronic machines were developed for the purpose of breaking german codes.
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a computer was developed at Harverd University by this man. it was a programmed controlled calculator.
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a computer called Colossus was completed in 1943. took over the task of code-breaking.
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the development of the transistor.
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computing was changed forever by the invention of the integrated circuit. this let to the introduction of the modern computer chip which contains the quivalent power of millions of transistors.
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Microprocessors were invented. these devices were etached materials with the capabilitites of many thousands of transistors
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the cray 1 was the first supercomputer which was available for purchace.
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this computer he released was called the Apple 2
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introduced first computer called the PET
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introduced the 8086 microprocessor.
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Ibm asked Mrcrosoft, gates and allen company to write an operating system for the new pc.
