Microprocessor
When referring to instruction words, a mnemonic is

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

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
A microprocessor is ALU

 and memory on a single chip.
 and control unit on a single chip.
 register unit and control unit on a single chip.
 register unit and I/O device on a single chip.

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
DS directive in 8085

Forces the assembler to reserve a specified number of consecutive bytes in the memory
Forces the assembler to reserve a specified number of bytes in the memory
Forces the assembler to reserve one byte of memory
None of these

ANSWER DOWNLOAD EXAMIANS APP