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
a) ALU, CU, MU
b) ALU,
peripherals, memory
c) RAM, ROM, CU
d) ALU, RAM
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
B UPS
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