Explore topic-wise MCQs in Computer Science.

This section includes 55 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.

1.

The amount of memory (RAM or ROM) is measured in[SBI PO 2014]

A. bytes
B. bits
C. megabytes
D. megabits
E. hertz
Answer» D. megabits
2.

 ......... is having more memory addresses than are physically available. [SBI PO 2014]

A. Virtual memory
B. System software
C. Application software
D. RAM
E. Vertical memory
Answer» B. System software
3.

Which of the following is the magnetic storage device?

A. Hard disk
B. Compact disk
C. Audio tapes
D. All of these
E. None of these
Answer» B. Compact disk
4.

What does the computer abbreviation 'MB' used for?  [IBPS Clerk 2014]

A. Megabit
B. Millionbytes
C. Megabytes
D. Millionbit
E. Microbytes
Answer» D. Millionbit
5.

Magnetic tape is not practical for applications where data must be quickly recalled because tape is

A. a random access medium
B. a sequential access medium
C. a read only medium
D. fragile and easily damaged
E. an expensive storage medium
Answer» C. a read only medium
6.

Dynamic RAM consumes ...... power and ...... than static RAM.

A. more, faster
B. more, slower
C. less, slower
D. less, faster
E. None of the above
Answer» D. less, faster
7.

Which is not a storage device? [SBI PO 2013, 14, IBPS Clerk 2014]

A. Floppy Disk
B. Printer
C. DVD
D. Hard Disk
E. CD
Answer» C. DVD
8.

The most common storage device for the personal computer is the   [SBI Clerk 2014]

A. floppy disk
B. USE personal computer
C. mainframe
D. a laptop
E. None of the above
Answer» B. USE personal computer
9.

The thick, rigid metal plotters that are capable of retrieving information at a high rate of speed are known as [SBI Clerk 2014]

A. hard disks
B. SAN
C. soft disks
D. flash memory
E. None of these
Answer» B. SAN
10.

A directory within a directory is called..........[IBPS Clerk 2013]

A. mini directory
B. junior directory
C. sub directory
D. part directory
E. None of these
Answer» D. part directory
11.

The ...... indicates how much data a particular storage medium can hold. [IBPS Clerk 2013]

A. storage
B. access
C. capacity
D. memory
E. None of these
Answer» B. access
12.

A disk's content that is recorded at the time of manufacture and that cannot be changed or erased by the user is [IBPS Clerk 2013]

A. memory-only
B. write-only
C. once-only
D. run-only
E. read-only
Answer» F.
13.

A byte is a collection of[IBPS Clerk 2012]

A. four bits
B. six bits
C. eight bits
D. ten bits
E. twelve bits
Answer» D. ten bits
14.

Which of the following is the smallest measure of storage? [SBI Clerk 2012]

A. Terra byte
B. Gigabyte
C. Kilobyte
D. Megabyte
E. Byte
Answer» F.
15.

How many bytes are there in one gigabyte? [SSC FCI 2012]

A. 103 bytes
B. 106 bytes
C. 109 bytes
D. 1012 bytes
Answer» D. 1012 bytes
16.

 ......... acts as temporary high speed holding area between the memory and the CPU thereby improving processing capabilities. [IBPS Clerk 2012]

A. ROM
B. RAM
C. Temporary memory
D. Cache memory
E. Flash memory
Answer» E. Flash memory
17.

The capacity of 3.5 inch floppy disk is [SBI Clerk 2012]

A. 1.40 MB
B. 1.44 GB
C. 1.40 GB
D. 1.45 MB
E. 1.44 MB
Answer» F.
18.

Where are programs and data to be used by the computer available?   [SSC FCI 2012]

A. Processing unit
B. Output
C. Storage
D. Input
Answer» D. Input
19.

 ......... is the ability of a device to 'jump' directly to the requested data. [IBPS Clerk 2012]

A. Sequential access
B. Random access
C. Quick access
D. All of the above
E. None of the above
Answer» C. Quick access
20.

Floppy disks are organised as [IBPS PO 2012]

A. files
B. heads and folders
C. tracks and sectors
D. All of these
E. None of these
Answer» D. All of these
21.

Memory is made up of  [SBI Clerk 2012]

A. set of wires
B. set of circuits
C. large number of cells
D. All of the above
E. None of the above
Answer» D. All of the above
22.

Full form of MB is [SBI Clerk 2012]

A. microbytes
B. megabytes
C. minibytes
D. millibytes
E. kilobit
Answer» C. minibytes
23.

Which of the following memory chip is faster?  [SBI Clerk 2012]

A. There is no certainty
B. DRAM
C. SRAM
D. RAM
E. None of these
Answer» D. RAM
24.

Cache and main memory will not be able to hold their contents when the power is OFF. They are [Allahabad Bank PO 2012]

A. dynamic
B. static
C. volatile
D. non-volatile
E. faulty
Answer» D. non-volatile
25.

Information stored in RAM need to be [IBPS Clerk 2011]

A. check
B. refresh periodically
C. modify
D. detecting errors
E. None of these
Answer» C. modify
26.

The CD-ROM drive is used to [Allahabad Bank PO 2011]

A. play compact disks
B. play music
C. install software
D. control digital information
E. None of the above
Answer» B. play music
27.

Which of the following is an example of optical disk?   [Allahabad Bank PO 2011]

A. Digital versatile disks
B. Magnetic disks
C. Memory disks
D. Data bus disks
E. None of the above
Answer» B. Magnetic disks
28.

A flat metallic disk that contains a large amount of permanently stored information read optically, is called a

A. monitor
B. ALU
C. CD-ROM
D. RAM
E. None of these
Answer» D. RAM
29.

When you turn ON the computer, the boot routine will perform

A. RAM test
B. disk drive test
C. memory test
D. power-on self-test
E. None of these
Answer» E. None of these
30.

Which of the following has the largest storage capacity for removable media?

A. Floppy disk
B. CD-ROM
C. DVD
D. Partitioned space
E. None of the above
Answer» D. Partitioned space
31.

Which of the following is a correct definition of volatile memory?

A. It does retain its contents at high temperatures
B. It is to be kept in air-tight boxes
C. It loses its contents on failure of power supply
D. It does not lose its contents on failure of power supply
E. None of the above
Answer» D. It does not lose its contents on failure of power supply
32.

Where do you save the data that, your data will remain intact even when the computer is turned OFF?

A. RAM
B. Motherboard
C. Secondary storage device
D. Primary storage device.
E. None of the above
Answer» D. Primary storage device.
33.

The advantage of DRAM is

A. it is cheaper than SRAM
B. it can store more than that of SRAM
C. it is faster than SRAM
D. data can be erased easily in it as compared to SRAM
E. None of the above
Answer» B. it can store more than that of SRAM
34.

Today the common form of RAM is built with

A. transistors
B. vacuum tubes
C. semi conductors ICs
D. super conductors ICs
E. None of the above
Answer» D. super conductors ICs
35.

Which of the following is not an example of storage device?

A. CD
B. Floppy
C. Hard disk
D. RAM
E. DVD
Answer» E. DVD
36.

Tape drive provides ...... access to data

A. timely
B. sporadic
C. random
D. sequential
E. None of these
Answer» E. None of these
37.

Data on a floppy disk is recorded in rings called

A. sectors
B. ringers
C. rounders
D. tracks
E. segments
Answer» E. segments
38.

Which of the following statements is valid?

A. 1 KB= 1024 bits
B. 1 MB = 2048 bits
C. 1 MB= 1000 kilobits
D. 1 KB= 1000 bytes
E. 1 MB = 1024 kilobits
Answer» F.
39.

An area of computer that temporarily holds data waiting to be processed is

A. CPU
B. memory
C. storage
D. file
E. None of these
Answer» C. storage
40.

The size of any word/number in a computer is measured in

A. bits
B. bytes
C. meter
D. litre
E. None of these
Answer» B. bytes
41.

The highest unit of information, computer can understand and process, is known as a

A. exa byte
B. zetta byte
C. yotta byte
D. bronto byte
E. geop byte
Answer» F.
42.

How many bits are equal to one byte? [SSC CGL 2016]

A. 8
B. 6
C. 7
D. 2
Answer» B. 6
43.

Which among the following is another name for a gorup of 4 dits? [IBPS PO 2016]   

A. Nibble
B. Byte
C. Kilo Byte
D. Mega Byte
E. Peta Byte
Answer» B. Byte
44.

Expansion cards are inserted into [IBPS Clerk 2015]

A. slots
B. peripheral devices
C. the CPU
D. the back of the computer
E. None of the above
Answer» B. peripheral devices
45.

Which of the following disks can be read only?    [IBPS Clerk 2015]

A. DVD-R
B. DVD-ROM
C. DVR-RW
D. CD-R
E. None of these
Answer» C. DVR-RW
46.

When you first turn ON a computer, the CPU is preset to execute instructions stored in the [IBPS PO 2015]

A. RAM
B. flash memory
C. ROM
D. CD-ROM
E. ALU
Answer» D. CD-ROM
47.

The main directory of a disk is called the directory.[IBPS PO 2015]

A. Network
B. Folder
C. Root
D. Other than those given as options
E. Program
Answer» D. Other than those given as options
48.

What is the temporary storage memory chips that form the computers primary work space? The contents are lost if power is disrupted. [SBI Clerk 2015]

A. Outputs
B. Windows
C. ROM
D. Hard drive memory
E. RAM
Answer» F.
49.

 ......... are used to measure both computer memory (RAM) and storage capacity of Floppy disks, CD-ROM drives and Hard drives.   [SBI Clerk 2015]

A. Bytes
B. Bites
C. Octal numbers
D. Hexadecimal numbers
E. Binary numbers
Answer» B. Bites
50.

Which of the following can hold maximum data?

A. Optical disk
B. Floppy disk
C. Magnetic disk inside
D. Magnetic tape
E. None of the above
Answer» E. None of the above