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1,000 to 500 BC
1. First actual calculating device
2. Maybe invented by the babylonians or the chinese -
invented by Babylonians or Chinese
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invented in mesopotamia
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invented in scotland
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1600's
1. multiplication tables inscribed on strips of wood or bone -
invented by John Napier
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invented in scotland
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1600's
1. used napier's work to design slide rule
2. longest use of a computing device
3. used by NASA -
invented by william oughtred
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- first operational calculating machine
- helped his father add sums of money
- could only add and subtract
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invented by Blaise Pascal
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The Jacquard loom was a machine invented by Joseph Marie Jacquard 1801, was used punch cards to create patterns on woven fabric. This loom machine was a great invention because it led to the keypunch machine.
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Augusta Ada Byron King aka Ada Lovece was known as the first computer programmer. She wrote codes for Charles Babbage analytical engine and foresaw the first computer.
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The difference engine was an early mechanical calculator using gears and rods to calculate complex equations. It was invented by charles babage in 1822 but was never completed because he started inventing a more sophisticated machine called Analytical Engine.
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Hollerith's tabulating machine, a machine used to help people on tabulations, was created in 1884. He used electrical charges to move the gears to punch cards for the US 1890 census.
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invented in france
