Computer Organization MCQ SET-7

Computer Organization AND Architecture MCQ With Answers

1. The purpose of ROM in a computer system is

Answer :(A) to store constant data required for computers own use

2. Which one does not possess the characteristics of a memory element?

Answer :(C) An AND gate

3. Data from memory location after fetching is deposited by memory in

Answer :(B) MBR

4. How many minimum NAND gates are required to make a flip flop?

Answer :(A) 4

5. A UART is an example of

Answer :(A) serial asynchronous data transmission ship

Computer Organization MCQ

6. A priority interrupt may be accomplished by

Answer :(D) all of these

7. Control program memory can be reduced by

Answer :(C) vertical format micro-program

8. Periodic refreshing is needed in

Answer :(D) DRAM

9. Which of the following I/O mechanisms requires the least hardware support?

Answer :(A) Polled

10. How many bits are needed to represent a digit in hexadecimal notation?

Answer :(D) 4

Computer Organization MCQ

11. How many RAM chips(each of 128*4) are required to provide a memory capacity of 2048 bytes?

Answer :(B) 32

12. How many memory locations can be accessed by a 32-bit computer?

Answer :(A) 4GB

13. Which one of the following is volatile in nature?

Answer :(A) RAM

14. The maximum unsigned binary number in 8-bit is

Answer :(A) 255

15. The minimum and maximum 8-bit numbers in signed magnitude representation are

Answer :(C) -128 and 127

Computer Organization MCQ

16. The minimum and maximum 8-bit numbers in signed 2’s complement representation are

Answer :(B) -128 and 127

17. The complement operations are useful for

Answer :(D) Subtraction and logical operations

18. In floating-point representation, biased exponent is used to :

Answer : (D) Both (a) and (c)

Computer Organization MCQ

19. The overflow in floating-point representation is detected by inspecting

Answer : (A) The carry into sign bit and carry-out from the sign bit positions and if they are different

20. The floating-point numbers are normalized

Answer :(D) Both (a) and (b)

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