When was Pascaline invented?
1617
1620
1642
1837
Answer : C
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1) Which of the following memories must be refreshed many times per second?
2) A disadvantage of the laser printer is
It is quieter than an impact printer
It is very slow
The output is of a lower quality
None of the above
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3) An output device that uses words or messages recorded on a magnetic medium to produce audio response is
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5) An error in computer data is called
