Processing System(Computer Aptitude ) Questions and Answers

Question 1.

Central processing unit is a combination of

  1.    control and storage
  2.    control and output unit
  3.    arithmetic logic and input unit
  4.    arithmetic logic and control unit
  5.    None of the above
Explanation:-
Answer: Option D. -> arithmetic logic and control unit
Question 2.

Which statement is valid?

  1.    1 KB = 1024 bytes
  2.    1 MB = 2048 bytes
  3.    1 MB = 1000 kilobytes
  4.    1 KB = 1000 bytes
  5.    1 KB = 1028 bytes
Explanation:-
Answer: Option A. -> 1 KB = 1024 bytes

Which statement is valid?

Question 3.

Microprocessors can be used to make

  1.    Computers
  2.    Digital systems
  3.    Calculators 
  4.    All of these
  5.    None of these
Explanation:-
Answer: Option D. -> All of these
Question 4.

A term associated with the comparison of processing speeds of different computer system is

  1.    EFTS
  2.    MPG 
  3.    MIPS
  4.    CPS
  5.    None of these
Explanation:-
Answer: Option C. -> MIPS
Question 5.

Which of the following memory medium is not used as main memory system?

  1.    Magnetic core
  2.    Semi conductor
  3.    Magnetic tape
  4.    Both Semi conductor and magnetic tape
  5.    None of the above
Explanation:-
Answer: Option C. -> Magnetic tape
Question 6.

The control unit of a microprocessor

  1.    stores data in the memory
  2.    accepts input data from keyboard
  3.    performs arithmetic logic function
  4.    All of the above 
  5.    None of the above
Explanation:-
Answer: Option C. -> performs arithmetic logic function
Question 7.

Which of the following are the two main components of the CPU?

  1.    Control unit and registers
  2.    Registers and main memory
  3.    Control unit and ALU
  4.    ALU and bus
  5.    None of the above
Explanation:-
Answer: Option C. -> Control unit and ALU
Question 8.

Different components on the motherboard of a PC processor unit are linked together by sets or parallel electrical conducting lines. What are these lines called?

  1.    Conductors
  2.    Buses
  3.    Connectors
  4.    Connectively
  5.    None of these
Explanation:-
Answer: Option B. -> Buses
Question 9.

The ALU of a computer responds to the commands coming from

  1.    primary memory
  2.    control section
  3.    external memory
  4.    cache memory
  5.    None of these
Explanation:-
Answer: Option B. -> control section
Question 10.

Instructions and memory address are represented by

  1.    character code
  2.    binary codes
  3.    binary word 
  4.    parity bit
  5.    decimal word
Explanation:-
Answer: Option B. -> binary codes
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