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Microprocessor

Microprocessor
Which of the following is type declaration statement in C?

prin = prin * prin
s = s + 1
king = horse + 1
int bar

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Microprocessor
‘Burst refresh’ in DRAM is also called

Hidden refresh
Concentrated refresh
Distributed refresh
None of these

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Microprocessor
A single instruction to clear the lower nibble of accumulator in 8085 language assembly is

 ANI OFH
 XRI FOH
 ANI F0H
 XRI 0FH

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Microprocessor
Because we wish to allow each ASCII code to occupy one location in memory, most memories are __________ addressable.

BYTE
DOUBLEWORD (32 bits)
WORD (16 bits)
NIBBLE

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Microprocessor
The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is

 12
 8
 20
 16

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Microprocessor
In microprocessor based system I/O ports are used to interface

 the I/P device only
 the O/P devices only
 the I/O devices and memory chips
 all the I/O devices

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