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Computer Basic Information

Computer Basic Information
An electronic logic gate whose output is logic 0 only when all inputs are logic 1 is

NOR
OR
NAND
None of these
NOT

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Computer Basic Information
A six - digit card field used for postal ZIP codes is defined as

A numeric field
An alphanumeric field
An alphabetic field
None of these
A letter field

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Computer Basic Information
Computer virus is a ___

Freeware
Software
Hardware
Bacteria

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Computer Basic Information
What is meant by quad-density (QD) diskette?

None of these
It is double-sided disk
All of these
It has double the number of tracks per inch
It is double density disk

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Computer Basic Information
Which of the following is a computer memory that can be programmed once, but not reprogrammed.

ROM
PROM
EPROM
None of these
RAM

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Computer Basic Information
Which of the following is the user programmed semiconductor memory?

All of these
DRAM
EPROM
SRAM
None of these

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