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Microprocessor

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

 ANI OFH
 XRI 0FH
 XRI FOH
 ANI F0H

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

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

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Microprocessor
MS Access is a DBMS software.

True
False

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Microprocessor
In one’s complement 8 bit representation 11111111 represents

-0
-1
1
+0

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Microprocessor
The data bus of any microprocessor is always

 Unidirectional
 Bi-directional
 None
 Either unidirectional or bi-directional

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Microprocessor
The 8085 microprocessor enters into bus idle machine cycle whenever

None of these
 DAD RP instruction is executed
 RST 7.5 is recognized
 INTR interrupt is recognized

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