7. Answer the following a. What is an abacus? b. Who invented Napier's bone? And when? C. What is slide rule? Who invented it? d. What is Pascaline? What does it contain? . Who is known as father of Computer? Who is known as the first programmer? What did Dr. Herman Hollerith invent? Vhich is the first computer? Who invented it and wh named? at was the first digital computer? Who invented it and at was the first general purpose computer nted it?
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Charles Babbage is father of computer
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