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Free download in PDF Computer Awareness Multiple Choice Questions(MCQs) & Answers. These multiple choice questions on Computer Science are very useful for NIELIT, BCA, B.Sc. MCA, M.Sc. B.Tech, M.Tech, BE, ME students an interview for various positions like Web Developer, System Analyst etc.
(1)
State the correct external command?
[A]
Chkdsk.exe
[B]
Attrib.exe
[C]
Restore.exe
[D]
Backup.exe
(2)
Which of the following shortcut key is used to move backward through the tabs?
[A]
SHIFT+TAB
[B]
CTRL+SHIFT+TAB
[C]
CTRL+TAB
[D]
CTRL+ALT+TAB
(3)
Which of the following is the impact printer?
[A]
Laser printer
[B]
Ink jet printers
[C]
Chain Printers
[D]
All of the above
(4)
The use of parity bit is for
[A]
Error detection
[B]
Indexing
[C]
Coding
[D]
All of the above
(5)
The primary purpose of software is to turn data into ____
[A]
Websites
[B]
Information
[C]
Programs
[D]
Objects
(6)
Back up of the data files will help to prevent ____.
[A]
Loss of confidentiality
[B]
Duplication of data
[C]
Virus infection
[D]
Loss of data
(7)
An input device that converts data punched into paper lape into a binary format is
[A]
Page reader
[B]
Paper tape punch
[C]
Paper tape reader
[D]
Card punch
Answer: Paper tape reader
(8)
A computer will function only if it
[A]
Has a control unit
[B]
Is given input data
[C]
Has a program in its memory
[D]
Has software package
Answer: Has a program in its memory
(9)
A memory in which the information is stored last is on top & is retrieved first is known as
[A]
PROM
[B]
Buffer
[C]
Stack
[D]
RAM
(10)
Regarding a VDU, which statement is more correct?
[A]
It is an output device
[B]
It is an input device
[C]
It is a peripheral device
[D]
It is a hardware item
Answer: It is a peripheral device
(11)
The minimum time delay required between the initiation of two successive memory operations is known as
[A]
Memory cycle time
[B]
Memory access time
[C]
Transmission time
[D]
Waiting time
Answer: Memory cycle time
(12)
The flow and timing to data to and from the microprocessor is regulated by
[A]
Control pins
[B]
Address pins
[C]
Data pins
[D]
Power pins
(13)
The total number of messages handled by a computerized telephone system on a daily basis is an example of
[A]
Frequency
[B]
Updating
[C]
Volume
[D]
All of the above
(14)
An internal storage consisting of arrays of small rings of magnetic material called ferrite is
[A]
Magnetic tape
[B]
Magnetic core
[C]
Magnetic disk
[D]
Optical mark reader
(15)
Which of the following processor is software that accepts user ideas, manipulates and reorganises them in user-specified ways and then produces a refined model of those thoughts.
[A]
Distribute
[B]
Out-line
[C]
Multi
[D]
None of the above
(16)
CRSYX- MP belongs to ____ generation
[A]
First
[B]
Second
[C]
Third
[D]
Fourth
(17)
A special, high-speed storage area within the CPU in which all data must be represented before it can be processed is called?
[A]
BIOS
[B]
Cache
[C]
RAM
[D]
Register
(18)
The method of Internet access that requires a phone line, but offers faster access speeds than dial-up is the _______ connection
[A]
Fibre-optic service
[B]
Satellite access
[C]
Cable access
[D]
Digital subscriber line (DSL)
Answer: Digital subscriber line (DSL)
(19)
The ATTRIB command will
[A]
Set or remove the Read-Only, Archive, System and Hidden attributes
[B]
Define the data files search path that DOS will use each time it fails to locate in the current directory
[C]
Instruct DOS to route disk drive references from one disk to another
[D]
All of the above
Answer: Set or remove the Read-Only, Archive, System and Hidden attributes
(20)
In a punched card system, data is processed by a
[A]
Keypunch machine, sorter and posting machine
[B]
Accounting machine, posting machine, and billing machine
[C]
Sorter, posting machine, and billing machine
[D]
Accounting machine, keypunch machine and sorter
Answer: Portions of the operating system are copied from disk into memory