8085 Microprocessor solved MCQs

1 of 7

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. Name of typical dedicated register is:

a. pc

B. ir

c. sp

d. all of these

7. Which is used to store critical pieces of data during subroutines and interrupts:

a. stack

B. queue

c. accumulator

d. data register

8. The data in the stack is called:

a. pushing data

B. pushed

c. pulling

d. none of these

9. The external system bus architecture is created using from ______ architecture:

a. pascal

B. dennis ritchie

c. charles babbage

d. von neumann

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

a. 16

B. 32

c. 36

d. 64

11. Which is not the control bus signal:

a. read

B. write

c. reset

d. none of these

12. PROM stands for:

a. programmable read-only memory

B. programmable read write memory

c. programmer read and write memory

d. none of these

13. EPROM stands for:

a. erasable programmable read-only memory

B. ectrically programmable read write memory

c. electrically programmable read-only memory

d. none of these

14. Each memory location has:

a. address

B. contents

c. both a and b

d. none of these

15. Which is the type of microcomputer memory:

a. processor memory

B. primary memory

c. secondary memory

d. all of these

16. Secondary memory can store____:

a. program store code

B. compiler

c. operating system

d. all of these

17. Secondary memory is also called____:

a. auxiliary

B. backup store

c. both a and b

d. none of these

18. The RAM which is created using bipolar transistors is called:

a. dynamic ram

B. static ram

c. permanent ram

d. ddr ram

19. Which type of RAM needs regular referred:

a. dynamic ram

B. static ram

c. permanent ram

d. sd ram

20. Which RAM is created using MOS transistors:

a. dynamic ram

B. static ram

c. permanent ram

d. sd ram

21. 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

22. The CPU removes the ___ signal to complete the memory write operation:

a. read

B. write

c. both a and b

d. none of these

23. BIU STAND FOR:

a. bus interface unit

B. bess interface unit

c. a and b

d. none of these

24. EU STAND FOR:

a. execution unit

B. execute unit

c. exchange unit

d. none of these

25. Eight of the register are known as:

a. general- purpose register

B. pointer or index registers

c. segment registers

d. other register

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