Computer Basic Information
Bubble memory is a

Combination of sequential and direct access devices
Sequential access device only
None of these
All of these
Direct access device only

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Computer Basic Information
An AND gate

is equivalent to a parallel switching circuit
is an any-or all gate
None of these
implements logic addition
is equivalent to a series switching circuit

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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?

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

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