Computer Organization MCQ SET-4

Computer Organization AND Architecture MCQ With Answers

1. Subractor can be implemented using

Answer :(C) both (a)&(b)

2. Overflow occurs when

Answer :(B)Data is out of range

3. Instruction cycle is

Answer :(B) fetch-decode-execution

4. Cache memory

Answer :(B) increase performance

5. In microprogramming

Answer :(C) horizontal microinstruction is faster

Computer Organization MCQ
6. Associative memory is

Answer :(A) content addressable memory

7. The speed of microprocessor is usually measured by the

Answer :(D)time required to execute a basic instruction

8. For BIOS(Basic Input Output System) and IOCS(Input Output Control Systyem),which one of the following is true?

Answer :(D) BIOS is not a part of Operating System and IOCS is a part of Operating System

9. How many RAM chips of size (256 K * 1 bit) are required to build 1M byte memory?

Answer :(A) 32

10. Which logic gate has the highest speed?

Answer :(D) ECL

Computer Organization MCQ
11. A decimal number has 30 digits. Approximately, how many digits would binary representations have?

Answer :(B) 90

12. How many address lines is needed to address each memory location in 2046*4 memory chip?

Answer :(A) 11

13. The minimum number of operands with any instruction is

Answer :(C) 0

14. A single bus structure primarily found in

Answer :(A) Mini and Micro-computers

15. The principle of lacalty justifies the use of

Answer :(B) Cache memory

Computer Organization MCQ
16. Memory mapped I/O scheme for the allocation of address to memories and I/O devices is used for

Answer :(C) Both Large and Small systems

17. Which of the following addressing modes is used in the instruction PUSH B ?

Answer :C) immediate

18. A ripple carry adder requires …time.

Answer :(C) linear time(O(N))

19. Convert (FAFAFA)16 into octal form.

Answer :(C) 76575372

20. When signed numbers are used in binary arithmetic, then which one of the following notations would have unique representaion for zero?

Answer :(A) 2’s complement

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