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evaluton of computer
The document discusses the evolution of early computing devices from the abacus invented by the Chinese around 4000 BC for counting, to the Pascaline calculator invented by Blaise Pascal in 1642 which could perform addition and subtraction. Gottfried Leibniz then enhanced the Pascaline calculator in 1673 to also perform multiplication and find square roots. Further developments included the Difference Engine, Analytical Engine, Hollerith's tabulating machine, the Mark I computer, and ENIAC from 1943-1946. Modern computers have since evolved from mainframe to supercomputers.
evaluton of computer
- 2. PRESENTED BY SYEDA ADINAJAZ 37
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- 4. Since man isborn with intelligence, he thought of ways that would make things easy for him. One of the problems encountered by man was counting the things he had. Because of this, he invented something that could help him
- 5. Early Computing Devices The Abacus About4,000 years ago, the Chinese invented the ABACUS. It is an adding tool that can help can you add & subtract numbers by moving beads back & forth on rods.
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- 7. The Pascaline Calculator In 1642,Blaise Pascal, a French mathematician, invented the Pascal calculator. This device, also known as the Pascaline. This device was limited to addition & subtraction only.
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- 9. Leibnitz Calculator In 1673,Gottfried Leibntiz, a German mathematician & philosopher, enchanced the Pascaline by creating a device that could also multiply. It can even find the square root of number. The device was called the Leibnitz Calculator/ machine.
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- 13. Hollerith’s Tabulating Machine In 1889,Herman Hollerith
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- 17. Supercomputers Supercomputers are themost powerful computers made. Supercomputers are used to process huge amount of data for complex processes such as nuclear fission.
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- 19. Mainframe ComCputers Mainframe computers arethe largest among the computers in use today. Mainframe computers are used where many people in large organizations are frequently accessing similar information.
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