Microprocessor
A microprocessor without the interrupt facility

 cannot be interfaced with any I/O devices
 is best suited for process control system
 is not useful for process control system
 cannot be used for DMA operation

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Microprocessor
Assertion(A): Monostablemultivibrators (IC74121) are used in a microprocessor based system for frequency measurement. Reason(R): Microprocessor counts the number of interrupt signals/second or within a specified interval through ISR.

 Both A & R are true but R is not the correct explanation of A.
 A is false but R is true.
 Both A & R are true and R is the correct explanation of A.
 A is true but R is false.

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Microprocessor
In 8085

P flag is set when the result has even parity
P flag is reset when the result has odd parity
P flag is set when the result has odd parity
P flag is reset when the result has even parity

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Microprocessor
How can we make any bit of a register “1”?

 AND that bit with “0” and remaining bits with “1”.
 OR that bit with “1” and remaining bits with “0”.
 AND that bit with “1” and remaining bits with “0”.
 OR that bit with “0” and remaining bits with “1”.

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