Computer Basic Information
Which most popular input device used today for interactive processing & for the on line entry of data for batch processing.

Mouse
Visual display terminal
Magnetic disk
None of these
Card punch

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Computer Basic Information
The CPU of a computer transfers print output to a temporary disk memory at high speed and then gets back to processing another job without waiting for the output to got to the printer. In this way, the CPU does not remain idle due to its own high speed as compared to the low speed of the printer. What is the name of this memory?

Buffer memory
None of these
ROM
I/O memory
External memory

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