COMPUTER HISTORY AND EVOLUTION
DEVELOPMENT OF COMPUTERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The Abacus
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The Calculator
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The Pascaline
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The Tabulating Machine
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Detailed explanation-1: -The Pascaline is a direct adding machine (it has no crank), so the value of a number is added to the accumulator as it is being dialed in. By moving a display bar, the operator can see either the number stored in the calculator or the complement of its value.
Detailed explanation-2: -Alternatively known as the Pascal’s Adder, Pascale, or Pascalene, Pascaline is a calculating machine developed and built by Blaise Pascal in 1642. The Pascaline was capable of mathematical operations, such as adding, subtracting, and carrying 10s, 100s, and 1000s.
Detailed explanation-3: -Move the horizontal slat down to cover the the black row of digits. Eliminate the value from a preceding operation that may still remain, by rotating with the hand the numbered drums inside the small windows of the machine to zero, the same way you did in addition. Dial the subtrahend. More items