When was Pascaline invented?
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1617
1620
1642
1837
Answer : C
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1) Why are vacuum tubes also called valves?
Because they can amplify the weak signals and make them strong
Because they can stop or allow the flow of current
Both of above
None of above
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2) The first general purpose electronic computer in the world was
3) Which part interprets program instructions and initiate control operations.
4) The advantage of COM are its __ and __
Compact size, speed readability
Compact size, speed
Readability, speed
Low cost, readability
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5) The earliest calculating devices are
