MECHANICAL - When we first start to see connections between our current technology and its ancestors., PREMECHANICAL - During this period were the first numbering systems., SLIDE RULE, ELECTROMECHANICAL - These are the beginnings of telecommunication. The telegraph was created in the early 1800s., ABACUS - A mechanical device used to aid an individual in performing mathematical calculations., VACUUM TUBES - The first computer used this as circuitry, TRANSISTOR - It replaced vacuum tubes and ushered in the second generation of computers., ELECTRONIC AGE - It can be defined as the time between 1940 and right now., TALLY STICKS, COMPUTER - It responds to a specific set of instructions in a well-defined manner., PASCALINE - Invented by Blaise Pascal in 1642., ABC - It was the first electronic digital computing device., OSBORNE 1 - The first portable computer., ADA LOVELACE - The First Computer Programmer, JACQUARD LOOM, ARTIFICIAL INTELLIGENCE - Breakthrough of fifth generation, MICROPROCESSOR - Replaced vacuum tubes and ushered in the second generation of computers., ARITHMOMETER - The first reliable, useful and commercially successful calculating machine., NAPIERS BONE, INTEGRATED CIRCUIT - The hallmark of the third generation of computers.,

History of Computer: Basic Computing Periods

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