CBSE Class 4 Computer Studies Components of Computer System MCQs

Question. Which part of the computer can display the users work ?
a) Mouse
b) Keyboard
c) Disk Drive
d) Monitor

Answer : D

Question. What is usually used for displaying information at public places ?
a) Monitor
b) Overhead Projections
c) Monitors and Overhead Projections
d) Touch Screen Kiosks

Answer : C

Question. A device that copies or reproduces text and images is also called a(n) __________ ?
a) optical scanner
b) bar code reader
c) character device
d) digital camera

Answer : A

Question. _______ devices convert human-understandable data and programs into a form that the computer can process ?
a) Printing
b) Output
c) Solid State
d) Input

Answer : D

Question. Which part of the computer displays the work done ?
a) RAM
b) Printer
c) Monitor
d) ROM

Answer : C

Question. Which of the following is needed for sound recording ?
a) Speaker
b) Microphone
c) Talker
d) Mouse

Answer : B

Question. 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

Answer : D

Question. The mouse __________ usually appears in the shape of an arrow ?
a) indicator
b) marker
c) meter
d) pointer

Answer : D

Question. Which of the following is not an output device ?
a) Plotter
b) Printer
c) Monitor
d) None of these

Answer : D

Question. A printer is this kind of device ?
a) input
b) word processing
c) processing
d) output

Answer : D

Question. What is output ?
a) What the processor takes from the user
b) What the user gives to the processor
c) What the processor gets from the user
d) What the processor gives to the user

Answer : D

Question. A hard copy of a document is __________ ?
a) printed on the printer
b) stored on a floppy
c) stored on a CD
d) stored in the hard disk

Answer : A

Question. The function of CPU is ?
a) to provide external storage of text
b) to communicate with the operator
c) to read, interpret and process the information and instruction
d) to provide a hard copy

Answer : C

Question. Which of the following groups consist of only output devices ?
a) Scanner, Printer, Monitor
b) Keyboard, Printer, Monitor
c) Mouse, Printer, Monitor
d) Plotter, Printer, Monitor

Answer : D

Question. Which unit controls the movement of signals between CPU and I/O ?
a) ALU
b) Control Unit
c) Memory Unit
d) Secondary Storage

Answer : B

Question. Access control based on a persons fingerprints is an example of ?
a) biometric identification
b) characteristic identification
c) fingerprint security
d) logistics

Answer : A

Question. ALU works on the instructions and data held in the ?
a) Notebook
b) Registers
c) Copy Pad
d) I/O devices

Answer : B

Question. Pick the odd one ?
a) Mouse
b) Scanner
c) Printer
d) Keyboard

Answer : C

Question. All of the logic and mathematical calculations done by the computer happen in/on the ?
a) system board
b) central control unit
c) central processing unit
d) mother board

Answer : C

Question. Which of the following is not an input device ?
a) Keyboard
b) Monitor
c) Microphone
d) Joystick

Answer : B

Question. In a computer most processing takes place in _________ ?
a) Memory
b) RAM
c) Motherboard
d) CPU

Answer : D

Question. The term _________ refers to data storage systems that make it possible for a computer or electronic device to store and retrieve data. ?
a) retrieval technology
b) input technology
c) output technology
d) storage technology

Answer : D

Question. The most widely used input device is the _________ ?
a) mouse
b) keyboard
c) modem
d) monitor

Answer : B

Question. Using output devices one can ?
a) input data
b) store data
c) scan data
d) view or print data

Answer : D

Question. In a computer, most of the processing takes place in ?
a) Memory
b) RAM
c) CPU
d) Motherboard

Answer : C

Question. Codes consisting of bars or lines of varying widths or lengths that are computer-readable are known as __________ ?
a) an ASCII code
b) a magnetic tape
c) an OCR scanner
d) a bar code

Answer : D

Question. What is equipment used to capture information and commands ?
a) Output device
b) Input device
c) Storage device
d) Telecommunication device

Answer : B

Question. The CPU comprises of Control, Memory, and ________ units ?
a) Microprocessor
b) Arithmetic/Logic
c) Output
d) ROM

Answer : B

Question. Which of the following functions is not performed by the CPU ?
a) Graphical display of data
b) Arithmetic calculations
c) Managing memory
d) Managing input and output

Answer : A