Explore topic-wise MCQs in Computer.

This section includes 125 Mcqs, each offering curated multiple-choice questions to sharpen your Computer knowledge and support exam preparation. Choose a topic below to get started.

51.

The instructions for starting the computer are housed in

A. RAM
B. CD-ROM
C. ROM chip
D. All of these
E. None of these
Answer» D. All of these
52.

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
53.

Which of the following is the storage area within the computer itself which holds data only temporarily as the computer processes instructions ?

A. The hard disk
B. Main memory
C. The control unit
D. Read-only memory
E. None of these
Answer» C. The control unit
54.

A permanent memory which holds data and instruction for start-up the computer and does not erase data after the power is off.

A. Network interface card
B. CPU
C. RAM
D. ROM
E. None of these
Answer» E. None of these
55.

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
56.

Which storage device is mounted on 'reels' ?

A. Floppy disk
B. Hard disk
C. Magnetic tapes
D. CD-ROM
E. None of these
Answer» D. CD-ROM
57.

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.
58.

A collection of 8 binary digits 0' s or 1' s in a string format is known as

A. bit
B. byte
C. kilobyte
D. kilobit
E. megabyte
Answer» C. kilobyte
59.

Which is representative of the size of the memory ?

A. Storage capacity
B. Access modes
C. Access time
D. Permanence storage
E. Physical storage
Answer» B. Access modes
60.

Which of the following is an example of optical disk ?

A. Digital versatile disks
B. Magnetic disks
C. Memory disks
D. Data bus disks
E. None of the above
Answer» B. Magnetic disks
61.

The storage device used to compensate for the difference in rates of flow of data from one device to another is termed as

A. chip
B. channel
C. floppy
D. call
E. buffer
Answer» F.
62.

The CD-ROM drive is used to

A. play compact disks
B. play music
C. install software
D. control digital information
E. None of the above
Answer» B. play music
63.

Information stored in RAM need to be

A. check
B. refresh periodically
C. modify
D. detecting errors
E. None of these
Answer» C. modify
64.

The term ...... refers to data storage systems that make it possible for a computer or electronic device to store and retrieve data.

A. retrival technology
B. input technology
C. output technology
D. storage technology
E. None of these
Answer» E. None of these
65.

A removable magnetic disk that holds information is

A. floppy disk
B. hard drive
C. monitor
D. portable
E. None of these
Answer» C. monitor
66.

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

A. timely
B. spordic
C. random
D. sequential
E. None of these
Answer» E. None of these
67.

Which of the following is/are example(s) of magnetic storage media ?

A. Zip disk
B. CD-ROM
C. Floppy disk
D. DVD
E. Both '1' and '3'
Answer» F.
68.

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
69.

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
70.

Where is data saved permanently ?

A. Memory
B. Storage
C. CPU
D. Printer
E. None of these
Answer» C. CPU
71.

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
72.

How many bits make a half byte ?

A. 2
B. 4
C. 6
D. 8
E. None of these
Answer» C. 6
73.

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
74.

Which of the following storage devices can be used for storing large backup data ?

A. Floppy disk
B. Hard disk
C. Magnetic tape
D. All of these
E. None of these
Answer» D. All of these
75.

The term 'gigabyte' refers to

A. 1024 bytes
B. 1024 kilobytes
C. 1024 megabytes
D. 1024 gigabytes
E. None of these
Answer» D. 1024 gigabytes
76.

The main directory of a disk is called the directory

A. Network
B. Folder
C. Root
D. Other than those given as options
E. Program
Answer» D. Other than those given as options
77.

How many bits are equal to one byte ?

A. 8
B. 6
C. 7
D. 2
Answer» B. 6
78.

The difference between memory and storage is that memory is ............. and storage is ........

A. temporary ; permanent
B. permanent ; temporary
C. slow ; fast
D. non-volatile ; volatile
E. None of the above
Answer» B. permanent ; temporary
79.

One nibble is equivalent to

A. 2 bits
B. 4 bits
C. 8 bits
D. 32 bits
E. None of these
Answer» C. 8 bits
80.

Which of the following memory chip is faster ?

A. There is no certainty
B. DRAM
C. SRAM
D. RAM
E. None of these
Answer» D. RAM
81.

When you first turn ON a computer, the CPU is preset to execute instructions stored in the

A. RAM
B. flash memory
C. ROM
D. CD-ROM
E. ALU
Answer» D. CD-ROM
82.

Which of the following disks can be read only ?

A. DVD-R
B. DVD-ROM
C. DVR-RW
D. CD-R
E. None of these
Answer» C. DVR-RW
83.

A ....... is approximately one billion bytes.

A. kilobyte
B. bit
C. gigabyte
D. megabyte
E. None of the above
Answer» D. megabyte
84.

......... is the process of dividing the disk into tracks and sectors.

A. Tracking
B. Formatting
C. Crashing
D. Allotting
E. None of the above
Answer» B. Formatting
85.

Compact disk that can store approximately 650-800 MB of data or 74-80 min of music are

A. zip disks
B. CD-ROM
C. video cards
D. pressing machines
E. floppy diskettes
Answer» C. video cards
86.

Why RAM is so called ?

A. Because it is read and write memory
B. Because it is a volatile memory
C. Because it can be selected directly for storing and retrieving data and instructions of any location of chip
D. Because it is a non-volatile memory
E. None of the above
Answer» D. Because it is a non-volatile memory
87.

How many kilobytes make a megabyte ?

A. 128
B. 1024
C. 256
D. 512
E. 64
Answer» C. 256
88.

What is the difference between a CD-ROM and CD-RW ?

A. They are the same-just two different terms used by different manufactures.
B. A CD-ROM can be written to and a CD-RW cannot
C. Other than those given as options
D. A CD-ROM holds more information that a CD-RW
E. A CD-RW can be written to but a CD-ROM can only be read from
Answer» F.
89.

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

A. Bytes
B. Bites
C. Octal numbers
D. Hexadecimal numbers
E. Binary numbers
Answer» B. Bites
90.

What is the temporary storage memory chips that form the computers primary work space ? The contents are lost if power is distrupted.

A. Outputs
B. Windows
C. ROM
D. Hard drive memory
E. RAM
Answer» F.
91.

Which type of memory gets lost when you switch OFF ?

A. ROM
B. RAM
C. Cache
D. Dynamic
E. Static
Answer» C. Cache
92.

The amount of memory (RAM or ROM) is measured in

A. bytes
B. bits
C. megabytes
D. megabits
E. bertz
Answer» D. megabits
93.

Which is not a storage device ?

A. Floppy Disk
B. Printer
C. DVD
D. Hard Disk
E. CD
Answer» C. DVD
94.

The thick, rigid metal plotters that are capable of retrieving information at a high rate of speed are known as

A. hard disks
B. SAN
C. soft disks
D. flash memory
E. None of these
Answer» B. SAN
95.

Hard disk devices are considered .......... storage.

A. flash
B. temporary
C. worthless
D. non-volatile
E. non-permanent
Answer» E. non-permanent
96.

A 'bit' refers to

A. a form of storage
B. a value equal to a kilobyte
C. a value equal to a megabyte
D. the smallest unit of digital information
E. the same things as a pixel
Answer» E. the same things as a pixel
97.

Storage media such as CD read and wirte information using ........

A. a laser beam of red light
B. magnetic dots
C. magnetic strips
D. All of the above
E. None of the above
Answer» B. magnetic dots
98.

ADVD is an example of a (n)

A. optical device
B. output device
C. hard disk
D. solid state storage device
E. None of these
Answer» B. output device
99.

CD-ROM is an example of

A. input device
B. output device
C. Both input & output
D. pointing device
E. None of the above
Answer» D. pointing device
100.

The hard drive is normally located

A. next to the printer
B. plugged into the back of the computer
C. underneath the monitor
D. on top of the CD-ROM
E. inside the system base unit
Answer» F.