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Microprocessor

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

 XRI 0FH
 XRI FOH
 ANI OFH
 ANI F0H

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Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0048H.
 0024H.
 0030H.
 0060H.

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

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 1280ns
 320ns
 640ns
 960ns

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Microprocessor
In Fortran 77 a variable name can contain special characters.

True
False

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

 Quadruplex
 Duplex
 Simplex
 Diplex

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