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 true but R is false.
 A is false but R is true.
 Both A & R are true and R is the correct explanation of A.

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Microprocessor
FPGA means

 Forward Programmable Gate Array
 Field Programmable Gate Array
 Field Parallel Gate Array
 Forward Parallel Gate Array

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Microprocessor
When referring to instruction words, a mnemonic is

 shorthand for machine language.
 a short abbreviation for the data word stored at the operand address.
 a short abbreviation for the operand address.
 a short abbreviation for the operation to be performed.

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