When was Pascaline invented?

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When was Pascaline invented?

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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

3) An output device that uses words or messages recorded on a magnetic medium to produce audio response is

4) Registers which are partially visible to users and used to hold conditional codes (bits set by the CPU hardware as the result of operations), are known as

5) An error in computer data is called

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