MCQs on Microprocessor Part-1

Microprocessor and Microcontrollers

1. Which is the microprocessor comprises____.

a. Register section

b. One or more ALU

c. Control unit

d. All of these

2. What is the store by register?

a. data

b. operands

c. memory

d. None of these

3. Accumulator based microprocessor example are_______.

a. Intel 8085

b. Motorola 6809

c. (a) and (b)

d. None of these

4. A set of register which contain are_______.

a. data

b. memory addresses

c. result

d. all of these

5. There are primarily two types of register________.

a. general purpose register

b. dedicated register

c. (a) and (b)

d. none of these

6. The name of typical dedicated register is_______.

a. PC

b. IR

c. SP

d. All of these

7. BCD stands for_______.

a. Binary coded decimal

b. Binary coded decoded

c. Both a & b

d. none of these

8. Which is used to store critical pieces of data during subroutines and interrupts________.

a. Stack

b. Queue

c. Accumulator

d. Data register

9. The data in the stack is called_______.

a. Pushing data

b. Pushed

c. Pulling

d. None of these

10. The external system bus architecture is created using from ______ architecture.

a. Pascal

b. Dennis Ritchie

c. Charles Babbage

d. Von Neumann

11. The processor 80386/80486 and the Pentium processor uses _____ bits address bus.

a. 16

b. 32

c. 36

d. 64

12. Which is not the control bus signal________.

a. READ

b. WRITE

c. RESET

d. None of these

13. PROM stands for______.

a. Programmable read‐only memory

b. Programmable read write memory

c. Programmer read and write memory

d. None of these

14. EPROM stands for______.

a. Erasable Programmable read‐only memory

b. Electrically Programmable read write memory

c. Electrically Programmable read‐only memory

d. None of these

15. Each memory location has__________.

a. Address

b. Contents

c. Both (a) and (b)

d. None of these

16. Which is the type of microcomputer memory_______.

a. Processor memory

b. Primary memory

c. Secondary memory

d. All of these

17. Secondary memory can store_________.

a. Program store code

b. Compiler

c. Operating system

d. All of these

18. Secondary memory is also called_______.

a. Auxiliary

b. Backup store

c. Both (a) and (b)

d. None of these

19. Customized ROMS are called_______.

a. Mask ROM

b. Flash ROM

c. EPROM

d. None of these

20. The RAM which is created using bipolar transistors is called_______.

a. Dynamic RAM

b. Static RAM

c. Permanent RAM

d. DDR RAM

21. Which type of RAM needs regular referred_______.

a. Dynamic RAM

b. Static RAM

c. Permanent RAM

d. SD RAM

22. Which RAM is created using MOS transistors_________.

a. Dynamic RAM

b. Static RAM

c. Permanent RAM

d. SD RAM

23. A microprocessor retries instructions from_______.

a. Control memory

b. Cache memory

c. Main memory

d. Virtual memory

24. The lower red curvy arrow show that CPU places the address extracted from the memory location on the_____.

a. Address bus

b. System bus

c. Control bus

d. Data bus

25. The CPU sends out a ____ signal to indicate that valid data is available on the data bus.

a. Read

b. Write

c. Both A and B

d. None of these