Search This Blog

CPU Questions and Answers [PDF]

CPU Questions and Answers PDF CPU (central processing unit) MCQ questions and answers multiple choice objective for interview and competitiv...

CPU Questions and Answers PDF

CPU (central processing unit) MCQ questions and answers multiple choice objective for interview and competitive exams related with pdf. These questions asked in many computer exams.

1. A device, which is not connected to CPU is called as ________ device.

a) Offline       

b) Online

c) off device  

d) not working

Ans. a

2. The technology that stores only the essential instructions on a microprocessor chip and thus enhances its speed is referred to as______

a) RISC          

b) ALU

c) Logo           

d) Command

Ans. a

3. Which part of the computer is directly involved in executing the instructions of the computer program?

a) Processor              

b) RAM           

c) Portal     

d) Hard disk

Ans. a

4. The amount of time taken to complete a process is called _____

a) Turnaround Time                        

b) Processing Time              

c) Process Time        

d) Working Time

Ans. a

5. CPU reads secondary memory from _____ memory.

a) Main

b) ROM

c) Hard Disk

d) Cache

Ans. a

6. CPU is expanded as _______.

(a) Central Power Unit

(b) Critical Processing Unit

(c) Central Processing Unit

(d) Cerebral Processing Unit

Ans. c

7. ______ is called the "Brain of Computer".

(a) CPU                      

(b) monitor

(c) keyboard              

(d) mouse

Ans. a

8. The main components housed in CPU are ______ .

(a) micro-processor

(b) Mother board, Random Access Memory (RAM)

(c) Secondary storage devices (hard disk,CD/DVD drive, floppy disk drive, etc.)

(d) all of them

Ans. d

9. In the CPU of a computer, _______ delivers power supply to all the components at appropriate voltages.

(a) Hard Disk

(b) Mother Board

(c) Switch Mode Power Supply (SMPS)

(d) DVD drive

Ans. c

10. The chip carrying out all processing works in a computer is called _______.

(a) micro-processor              

(b) keyboard              

(c) BIOS chip                                    

(d) RAM

Ans. a

11. ______ produces output/results after processing the input data.

(a) input unit             

(b) Central Processing Unit (CPU)

(c) output unit           

(d) all of them

Ans. b

12. Memory unit is one part of

a) Control unit

b) CPU

c) Input device

d) Output device

Ans. b

13. Parts of CPU are

a) ALU, CU, MU                   

b) ALU, peripherals, memory

c) RAM, ROM, CU                


Ans. a

14. The part of micro-processor which maintains a clock and induces each cycle of processing through a pulse is called ______.

(a) Arithmetic and Logic Unit (ALU)

(b) Register

(c) Cache

(d) timer

Ans. d


15. The number of floating point operations carried out by a micro-processor in one second is called ______.

(a) FLOPS     

(b) timer

(c) clock         

(d) frequency

Ans. a


16. The number of cycles of operations performed by a processor per second is called its _____.

(a) bus speed

(b) connection speed

(c) clock speed

(d) baud rate

Ans. c


17. Whereas clock speed is the gross number of operations performed by a processor per second, FLOPS represents ________ of processor per second.

(a) wasted time

(b) effective out turn

(c) wasted cycles

(d) clock speed

Ans. b


18. A floating point operation may require  ______ clock cycle to complete.

(a) just one

(b) less than one

(c) zero

(d) more than one

Ans. d


19. Intel Pentium processor was preceded byIntel processor.

(a) Core 2 duo          

(b) 80486/ 486

(c) Core i3                  

(d) Core i5

Ans. b


20.Which is an internal power supply units of CPU?

A CVT            


C SMPS         

D Stablizer

Ans. c

21. From the following which is known as the administrative section of the computer system?

a) Control Unit

b) Input Unit

c) RAM

d) Central Processing Unit

Ans. d


22. Component of CPU which is responsible for comparing the contents of two pieces of data is

a) ALU

b) CU

c) Memory

d) Register

Ans. a


23. When arithmetic, logic and control unit of a computer are combined into a single unit, it is known as

a) Central processing unit

b) memory unit

c) I/O unit

d) Operating unit

Ans. a


24. Brain of a computer is called

a) CPU

b) Software

c) Herd disk

d) Memory

Ans. a


25. A CPU contains

a) A card reader & a printing device

b) An analytical engine & a control unit

c) A control unit & an arithmetic logic unit

d) None of these

Ans. c


26. Movement of signals between CPU & I/O is

a) ALU

b) Control unit

c) Memory unit

d) Secondary storage

Ans. b


27. The part of the CPU that access & decodes program instructions, & coordinates the flow of data among various system components is the

a) Control unit          

b) ALU

c) Megahertz             

d) Motherboard

Ans. b


28. What does CPU stands for

a) Central processing unit              

b) Central process unit

c) Central printing unit                    

d) Central peripheral unit

Ans. a

29. CPU consists of following parts

a) CU and main memory

b) CU and ALU

c) Main memory and storage

d) Operating system and  application

Ans. b


30. Input is modified into output by

a) peripherals

b) Memory

c) CPU

d) Storage

Ans. c


31. Part of CPU which coordinates all functions of computer & other components

a) Mother board

b) Coordination board

c) Control unit

d) ALU

Ans. c


32. The function of CPU is

a) To provide external storage of text

b) To communicate with the operator

c) Ro read, interpret & process the information & instructions

d) Assembler

Ans. c


33. This components is required to process data into information & consist of integrated circuits

a) CPU

b) Hard disk

c) RAM

d) ROM

Ans. a


PDF Download here

 Buy Computer MCQ E-Book in Just Rs.39/- (7000 MCQs)

Open Office MCQs with PDF