Microprocessor
A bus connected between the CPU and main memory that permits transfer of information between main memory and the CPU is known as

 DMA bus
 Address bus
 Control bus
 Memory bus

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
Assertion(A): The frequency of 8085 system is ½ of the crystal frequency. Reason(R): Microprocessor (8085) requires a two phase clock.

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

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
Which of the following is not true during the execution of an interrupt service routine, which does not contain any EI instructions

 the microprocessor can be interrupted by a non-mask able interrupt
 the microprocessor cannot be interrupted by any mask able interrupt
 the microprocessor cannot be interrupted by any interrupt
 all interrupts except non-maskable interrupt are disabled

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.

 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.

ANSWER DOWNLOAD EXAMIANS APP