MICROPROCESSOR QUIZ

Which of the following is not a general purpose peripheral?

I/O port

Programmable interrupt controller

Programmable CRT controller

Programmable interval timer

TRUE ANSWER : ?
YOUR ANSWER : ?

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

the microprocessor cannot be interrupted by any interrupt

the microprocessor cannot be interrupted by any mask able interrupt

the microprocessor can be interrupted by a non-mask able interrupt

all interrupts except non-maskable interrupt are disabled

TRUE ANSWER : ?
YOUR ANSWER : ?

The number of status flags present in 8085 microprocessor are

10

8

5

16

TRUE ANSWER : ?
YOUR ANSWER : ?

The first microprocessor to include virtual memory in the intel microprocessor family is

80386

Pentium

80286

80486

TRUE ANSWER : ?
YOUR ANSWER : ?

It is possible to copy a file in the same directory.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a valid integer constant?

125 + 3

127

TRUE ANSWER : ?
YOUR ANSWER : ?

At the beginning of a fetch cycle, the contents of the program counter are

incremented by one.

transferred to address bus.

transferred to memory address register .

transferred to memory data register.

TRUE ANSWER : ?
YOUR ANSWER : ?

During the execution of the instruction, the ________tests the status and control flags and updates them based on the results of executing the instruction.

Bus Interface Unit (BIU)

Execution Unit (EU)

Both ‘c’ and ‘d’

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

A 37 bit mantissa has an accuracy of

11 decimal places

10 decimal places

6 decimal places

8 decimal places

TRUE ANSWER : ?
YOUR ANSWER : ?

Which instruction is required to rotate the content of accumulator one bit right along with carry?

RAL

RRC

RAR

RLC

TRUE ANSWER : ?
YOUR ANSWER : ?