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Computer Basic Information

Computer Basic Information
Which of the following memories needs refresh?

ROM
None of these
SRAM
DRAM
All of these

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Computer Basic Information
Before a disk drive can access any sector record, a computer program has to provide the record's disk address. What information does this address specify?

Surface number
Track number
None of these
Sector number
All of these

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Computer Basic Information
Which of the following programs give instructions about operations inside the computer

None of these
Compiler
Utility
Application
System software

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Computer Basic Information
The memory which is programmed at the time it is manufactured is

EPROM
PROM
ROM
RAM

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Computer Basic Information
The main purpose of the off line device is

None of these
To reduce the no.of operator errors in recording data
To save computer time
To save floor space in the computer centre
All of these

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Computer Basic Information
The following is true about 2-out of-5 code:

it is unweighted code
None of these
it has odd parity
it is weighted code
All of these

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