Computer Organization And Architecture MCQ Question With Answers PART - 3

Computer Architecture And Organization MCQ

1. Decode is the step during which instruction is ________:

    a. Initialized

    b. Incremented

    c. Decoded

    d. Both b & c

2. The instruction fetch operation is initiated by loading the contents of program counter into the  and sends request to memory:

    a. Memory register and read

    b. Memory register and write

    c. Data register and read

    d. Address register and read

3. The contents of the program counter is the _________ of the instruction to be run:

    a. Data

    b. Address

    c. Counter

    d. None of these

4. The instruction read from memory is then placed in the and contents of program counter is so that it contains the address of instruction in the program:

    a. Program counter, incremented and next

    b. Instruction register, incremented and previous

    c. Instruction register, incremented and next

    d. Address register, decremented and next

5. Execution of instruction specified by instruction to perform:

    a. Operation

    b. Operands

    c. Both a & b

    d. None of these

6. Which is method used most simple and commonly:

    a. Parity check method

    b. Error detecting method

    c. Both

    d. None of these

7. Which is the method of parity:

    a. Even parity method

    b. Odd parity method

    c. Both

    d. None of these

8. The ability of a code to detect single errors can be stated in term of the  :

    a. Concept of distance

    b. Even parity

    c. Odd parity

    d. None of these

9. The first n bit of a code word called ________ may be any of the 2n n- bit string minimum error bit:

    a. Information bits

    b. String bits

    c. Error bits

    d. All of these

10. A code in which the total number of 1s in a valid (n+1) bit code word is even, this is called an ______ :

    a. Even parity code

    b. Odd parity code

    c. Both

    d. None of these

11. The list of specific instruction supported by the CPU is termed as bits_______:

    a. Instruction code

    b. Parity set

    c. Instruction set

    d. None of these

12. ---------- is divided into a number of fields and is represented as a sequence of bits:

    a. instruction

    b. instruction set

    c. instruction code

    d. parity code

13. Which unit is necessary for the execution of instruction:

    a. Timing

    b. Control

    c. Both

    d. None of these

14. Which unit provide status, timing and control signal:

    a. Timing and control unit

    b. Memory unit

    c. Chace unit

    d. None of these

15. Which unit acts as the brain of the computer which control other peripherals and interfaces:

    a. Memory unit

    b. Cache unit

    c. Timing and control unit

    d. None of these

16. IRET stand for:

    a. Interrupt enter

    b. Interrupt return

    c. Interrupt delete

    d. None of these

17. Which are benefit of input/output interrupt:

    a. It is an external analogy to exceptions

    b. The processor initiates and perform all I/O operation

    c. The data is transferred into the memory through interrupt handler

    d. All of these

18. Which are the not causes of the interrupt:

    a. In any single device

    b. In processor poll devices

    c. It is an external analogy to exception

    d. None of these

19. Which are the causes of the interrupt:

    a. In any single device

    b. In processor poll devices

    c. In a device whose ID number is stored on the address bus

    d. All of these

20. Which are the functioning of I/O interrupt:

    a. The processor organizes all the I/O operation for smooth functioning

    b. After completing the I/O operation the device interrupt the processor

    c. Both

    d. None of these

21. Which is the most important component of a digit computer that interprets the instruction and processes the data contained in computer programs:

    a. MU

    b. ALU

    c. CPU

    d. PC

22. Which part work as a the brain of the computer and performs most of the calculation:

    a. MU

    b. PC

    c. ALU

    d. CPU

23. Which is the main function of the computer:

    a. Execute of programs

    b. Execution of programs

    c. Both

    d. None of these

24. How many major component make up the CPU:

    a. 4

    b. 3

    c. 6

    d. 8

25. Which register holds the current instruction to be executed:

    a. Instruction register

    b. Program register

    c. Control register

    d. None of these

26. Which register holds the next instruction to be executed:

    a. Instruction register

    b. Program register

    c. Program control register

    d. None of these

27. Each instruction is also accompanied by a  :

    a. Microprocessor

    b. Microcode

    c. Both

    d. None of these

28. Which are microcomputers commonly used for commercial data processing, desktop publishing and engineering application:

    a. Digital computer

    b. Personal computer

    c. Both

    d. None of these

29. Which microprocessor has the control unit, memory unit and arithmetic and logic unit:

    a. Pentium IV processor

    b. Pentium V processor

    c. Pentium III processor

    d. None of these

30. The processing speed of a computer depends on the  of the system:

    a. Clock speed

    b. Motorola

    c. Cyrix

    d. None of these

31. Which microprocessor is available with a clock speed of 1.6 GHZ:

    a. Pentium III

    b. Pentium II

    c. Pentium IV

    d. All of these

32. Which processor are used in the most personal computer:

    a. Intel corporation’s Pentium

    b. Motorola corporation’s

    c. Both

    d. None of these

 PART - 4

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