Microprocessor
The control flags in 8086 are:

 the interrupt flag(IF).
All of these
 the direction flag(DF).
 the Trap flag(TF).

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Microprocessor
Which of the following statements for intel 8085 is correct?

 PC specifies the number of instructions executed so far
 Program Counter (PC) specifies the address of the instruction last executed
 PC specifies the address of the instruction being executed
 PC specifies the address of the instruction to be executed

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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.

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

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