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Network Security 101 Session 1

Network Security 101 Session 1. B.C. 1617. 1642. 1673. 1820. 1801. 1832. Early Mechanical Computers. Napier’s Bones. Stepped Reckoner. Punch cards. Abacus. Pascaline machine. Arithmometer. Babbage’s Difference Engine. An Abacus (BC).

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Network Security 101 Session 1

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  1. Network Security 101Session 1

  2. B.C. 1617 1642 1673 1820 1801 1832 Early Mechanical Computers Napier’s Bones Stepped Reckoner Punch cards Abacus Pascaline machine Arithmometer Babbage’s Difference Engine

  3. An Abacus (BC) A mechanical device used for counting. Addition, subtraction, multiplication and division can be performed on a standard abacus. Using the abacus is still taught in Asian schools and still used by shopkeepers in Asia and “Chinatowns” in the USA.

  4. Napier’s Bones (1617) of logarithms and calculate based on relative position of the scales and when bound together created the first slide rule. • John Napier’s bones work on the principal

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