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Period: to
history of computers timeline
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John Napier
John Napier invented a set of rods which have become known as Napiers bones that could be used to perform complex calculations. -
Blaise Pascal
His machine could add numbers up to 8 digits -
Joseph Maire Jacquard
Developed a weeving loom that used punched cards to replicate designs. -
Charles Babbage
this machine was called the "difference engine" a glorified adding and multiplying machine. -
Herman Hollerith
a punched card calculator was created by him. -
Analytical engine
by this time several machines had been built which rivaled the Analytical engine in complexity. These were true mechanical calculators. -
Charles Babbage's son
He completed the central component, or mill of his father's Analytical engine. it worked perfectly. -
Lee De Forest
invented the electronic tube. -
electronic machines
in 1939 the electronic machines were developed for the purpose of breaking german codes. -
Howard H Aiken
a computer was developed at Harverd University by this man. it was a programmed controlled calculator. -
Colossus
a computer called Colossus was completed in 1943. took over the task of code-breaking. -
William B shockley, walter h brattain, and John Bardeen
the development of the transistor. -
Integrated circuit
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. -
Microprocessors
Microprocessors were invented. these devices were etached materials with the capabilitites of many thousands of transistors -
First cray
the cray 1 was the first supercomputer which was available for purchace. -
steve jobs
this computer he released was called the Apple 2 -
commodore business machines
introduced first computer called the PET -
intel
introduced the 8086 microprocessor. -
gates and allen company
Ibm asked Mrcrosoft, gates and allen company to write an operating system for the new pc.
