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Microprocessor

Microprocessor
Which one of the following microprocessor has 16-bit data bus?

 68000
 6502
 Z-80
 8085

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Microprocessor
Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier.[Hint: Construct the truth table for the adder and the multiplier]

Circuit A has more gates than circuit B
Circuit A has the same number of gates as circuit B
None of these
Circuit B has more gates than circuit A

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Microprocessor
The microprocessor may be made to exit from HALT state by asserting

 READY line
 RESTART
 any of the five interrupt lines
 A or B or HOLD line

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Microprocessor
Which of the following conditions is not allowed in an RS latch?

R is asserted, S is asserted
R is asserted, S is negated
R is negated, S is negated
R is negated, S is asserted

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Microprocessor
Which one of the following circuits transmits two messages simultaneously in one direction

 Simplex
 Diplex
 Quadruplex
 Duplex

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

 ANI OFH
 ANI F0H
 XRI FOH
 XRI 0FH

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