Computer Basics Questions for Interview and Examination
Includes Short Questions and Multiple Choice Questions
Short Questions about Introduction of Computer
1. What does
E.D.P stands for?
E.D.P stands for
Electronic Data Processing
2.
Define the electronic data processing
Electronic
Data Processing is the use of computers in recording, classifying,
manipulating, and summarizing of the data.
3.
Define computer
The term
computer is derived from the word compute. The word compute means to
calculate. A computer is an electronic machine that accepts data from
user as input, processes that data by performing calculations and
operations on it, stores data for later retrieval and generates the desired
output results (information)
4.
Draw a figure to illustrate the computer
5.
Define data
A collection of
raw facts and figures is called data. These facts can be the numbers,
words, images, audio, measurements and observations. The word raw means
that the facts have not yet been processed to get their actual meanings.
6.
What are the types of data?
There are
different types of data that includes numeric data, alphabetic data,
alphanumeric data, graphic data and voice data.
7.
Define the numeric data
Numeric data
consists of positive or negative numbers that may also be integer without any
fractional part or real number which includes integers with fractions.
8.
What is use of numeric data?
Numeric type data is usually used for calculations
9.
What are examples of numeric data?
Data may contain integer and real numbers. Examples are illustrated
below.
10.
Define the alphabetic data
Alphabetic data
contains the letters a, b, c… up to z. These letters may be small or capitals.
11.
What is use of alphabetic data?
Alphabets are
basic part of any human language. In real life everything is called with its
name and every name made up with alphabets.
12.
Give some examples of alphabetic data
Examples of
alphabetic data are Islamabad, Farhan, Table, Office, College, TEVTA, computer
etc
13.
Define the alphanumeric data
Alphanumeric
data is combination of alphabets, numbers, special characters (symbols) and
space character.
14.
What is use of alphanumeric data?
Alphanumeric data
is used to identify any person, thing, place, event and object.
15.
What are examples of alphanumeric data?
Alphanumeric data
examples are Year 2015, Roll No 15EA04, $46, 0330-1234567
16.
What are examples of graphic data?
Graphics includes pictures, snaps,
drawings, charts and moving pictures (movies) etc
17.
What are examples of audio data?
Audio includes any type of voice that
may be Naats, songs, human voice, etc
18.
Define the data processing.
Data processing can include a number of
stages such as sorting, searching, calculations, graphing etc where the input
data is manipulated in order to produce meaningful information.
19.
Define the information
Information is the data produced by
computer after processing. The use of information is to have decisions.
20.
Define the information technology
Information technology (IT) refers to
anything related to computing technology, such as networking, hardware,
software, the Internet, or the people that work with these technologies.
21.
Define the analog computers
Analog computers
recognize and process the data as a continuous measurement of a physical
property (voltage, pressure, speed and temperature). Automobile speedometer,
analog clock, voltage meter, ampere meter and electric current meter are
examples of analog computer.
22.
Define the digital computers
Digital computers process the digits to
represent numerals, letters or other special symbols. Digital computers operate
on inputs which are ON-OFF type and its output is also in the form of ON-OFF
signal. Normally, an ON is represented by a 1 and an OFF is represented by a 0.
It is also known as binary 1 or 0.
23.
Define the hybrid computers
A hybrid is a combination of digital and
analog computers. It combines the best features of both types of computers,
i-e. It has the speed of analog computer and the memory and accuracy of digital
computer.
24.
What are the categories of digital computer regarding classification?
Digital
computers can be classified into four categories
·
Super Computers
·
Mainframe Computers
·
Mini Computers
·
Micro Computers
25.
Define the super computer
A supercomputer is
a computer that is among the largest, fastest or most powerful of the
computers available.
26.
What is use of super computer?
Traditionally, supercomputers have been
used for scientific and engineering applications that must handle very large
databases or do a great amount of computation (or both).
27.
Define the mainframe computer
A large, expensive, and often highly
redundant computer designed to support a large organization, support a large
number of users, and make use of large volumes of secondary storage.
28.
Define the mini computer
A small computer that is
intermediate between a microcomputer and a mainframe in size, speed, and
capacity
29.
Define the micro computers
Microcomputer
is
complete machine for personal use in home or at office that includes a
microprocessor, memory, and input/output (I/O) facilities.
30.
Write the various field names where computer can be applied
Following are the various fields where computer can be applied
·
Business
·
Education
·
Banks
·
Entertainment
·
Home
·
Medical
·
Defense
·
Designing &
Publishing
·
Government Departments/Offices
·
Research
Laboratories
31.
Define the role of computer in engineering
Today, engineers rely on computers for
much of the process. Using computers and specialty computer software, engineers
can design, test and make changes to products in minimal time. Computers help
them complete the task at hand much more quickly.
32.
Define the CAD software
Computer aided design software is the
application of computer technology for logical designing.
33.
What is use of CFD software?
CFD (Computational Fluid Dynamics)
software are used to virtually test the airplane and automobiles etc.
34.
Define the Automation
Automation is the use of scientific and
technological principles in the manufacture of machines that take over work
normally done by humans.
35.
What are the areas of education where computer has great impacts?
Here are the names of some areas of
education where computer has great impacts.
·
Instruction
to students
·
Students
learning
·
Examination
and evaluation
·
Library
·
Institute
administration
36. What is use of computer in business?
Computers are
used in business for following aspects.
·
Business
communication
·
Inventory
Management System
·
Payroll
System
·
Data
Management
·
Management
Information System
·
Human
Resource Management
37. Define the computer hardware
Hardware represents the physical and
tangible components of a computer i.e. the components that can be seen and
touched. These components include keyboard, mouse, memory, processor, disks, disk
drives, display screens, printers, speakers, mother boards,
and chips etc.
38. Define the computer software
Software represents the logical or intangible
parts of computer. Software is collection of different programs. A program is
set of electronic instructions that tell the computer what to do and how
to do a particular task.
39. What units of hardware are showed by the
computer block diagram?
The block diagram shows the
following hardware units
1.
The Input Unit
2.
The Output Unit
3.
The System Unit
40.
Define the input unit
The input unit deals with input devices,
these devices are used to feed data into computer. Six widely used input
devices are keyboard, mouse, scanner, microphone, digital camera, web cam.
41.
Define the output unit
The output unit is used to deliver
information from the computer to an external or output device. Four widely
used output devices are monitor, printer, plotter and speakers.
42.
Define the system unit
The system unit is a case consists of
electronic components of the computer that provide data processing and storage
facility. Some important devices houses in this units are CPU, RAM, mother
board, hard disk, CD drive etc.
43.
Define the keyboard
The keyboard is one of the
primary ways we communicate with the computer and enter data. It is used to
enter three most widely used types of data i.e. numeric data, alphabetic data,
and alphanumeric data.
44.
What is the most widely used layout for keyboard?
QWERTY is the most widely used keyboard
layout in English language for computer keyboard.
45.
Define the pointing input devices
The input devices used to move the
pointer (arrow) on screen are called pointing input devices. The major pointing
devices are the mouse for the desktop computer and the touchpad for the laptop.
Track ball and pointing stick are also pointing input devices used by small
number of users.
46.
What are types of mouse?
There are two types of mouse; a mechanical
mouse has a rubber ball on its underside to detect movement of the mouse. An optical
mouse uses devices that emit and sense light to detect the mouse's movement.
47.
What are some common operations of mouse?
Some common mouse operations are point,
click, right click, double click, drag and rotate wheel etc.
48.
Define the trackball
Track Ball is pointing input device like
a mouse. It has a ball on its upper side. This ball is moved by fingers or
thumb and the pointer moves accordingly on screen.
49.
Define the touch pad
Touch pad is stationary pointing
input device used in laptop computers. It has a flat surface. Finger is moved
on this surface to move the pointer on screen.
50.
Define the joystick
Joystick is an input device used to
play games on computer. It is used to control motion of an object quickly in
game. This stick can be moved forward, backward or sideways. The buttons called
the triggers.
51.
Define the light pen
A light pen is a light-sensitive
computer input device that is used to select text, draw pictures and interact
with user interface elements on a computer screen or monitor.
52.
Define the scanner
A scanner is input device that
captures images from photographic prints, posters, magazine pages etc
for computer editing and display. The scanner operates in the same
manner as a photocopier.
53.
Define the microphone
Microphone is a device that converts
sound waves into analog
electrical
waves. Computer microphones are used for a variety of purposes, from recording
audio, voice chatting, teleconferencing to video conferencing.
54.
Define the touch screen
A touch screen is a computer display
screen that is also an input device. The screens are sensitive to pressure; a
user interacts with the computer by touching pictures or words on the screen.
55.
Define the digital camera
Digital Cameras are used to capture
images. Those images are then transferred to a computer when the Camera is
connected to the computer.
56.
Define the output devices
An output device is
any device used to send data from a computer to
another device or user. Most computer data output that
is meant for humans is in the form of audio or video.
57.
Define the monitor
Monitor or display screen is most
important output device. It is used to display the video and graphics
information generated by the computer through the video card. Monitors are
very similar to televisions but with higher resolution.
58.
What types of monitors are widely used today?
According to technology following
monitors are widely used in computer
·
CRT
·
LCD
·
LED
·
Plasma
59.
What is CRT stands for?
CRT stands for Cathode Rays Tube
60.
What is LCD stands for?
LCD stands for Liquid Crystal
Display
61.
What is LED stands for?
LED stands for Light Emitting
Diode
62.
Define the CRT monitor
This monitor used CRT (Cathode Ray Tube)
a vacuum tube as a display screen in a computer. The viewing end of the tube is
coated with phosphors, which emit light when struck by electrons.
63.
Define the printer
A printer is an output device that
prints characters, symbols and
graphics,
on paper.
64.
Define the term hard copy
A hard copy is a printed copy of
information from a computer. Sometimes referred to as a printout, a hard
copy is so-called because it exists as a physical object.
65.
What are two major types of printers according to their technology?
The
two major types of printer according to their technology are
·
Impact printers
·
Non Impact printers
66.
What are main parts used by Impact printers for printing?
Impact printers use head with pins,
hammer, and carbon ribbon for printing
67.
What are main parts used by non Impact printers for printing?
Non Impact printers use spray ink, heat,
pressure and LASER for printing
68.
Write some names of impact printers
The Dot Matrix printer, the Line
printer, and Daisy Wheel printer
69.
Write some names of non impact printers
The LASER printer, Inkjet printer, and
Thermal Wax printer
70.
How many pins are there in Dot Matrix heads?
There are 9 to 24 pins in Dot Matrix
heads.
71.
Which unit is used to measure the speed of Dot Matrix printer?
The working speed of Dot Matrix printer
is measured in CPS (characters per second)
72.
Why the Line printer is called Line printer?
The Line printer prints an entire line
at one time.
73.
What is LASER stands for?
LASER is short for Light Amplification
by Stimulated Emission of Radiation.
74.
What is the speed of LASER printer?
Home-use laser printers can print eight
pages per minute, but faster and print approximately 21,000 lines per minute or
450 pages per minute.
75.
Define the plotter
A plotter is hardcopy output device used
to print large linear drawings.
76.
Define the speakers
A speaker is a softcopy output device
that plays sound generated by the computer.
77.
Define the System Unit
The system unit is a case consists of
electronic components of the computer that provide data processing and storage
facility.
78.
What is CPU stands for?
CPU stands for Central Processing Unit
79.
What is the job of CPU in computer system?
It performs all types of data processing
operations. It stores data,
intermediate results and instructions (program). It controls the operation of
all parts of computer.
80.
What are components of CPU?
CPU itself has following three components
· Arithmetic
Logic Unit)
· Control
Unit
· Memory or
Storage Unit
81.
What is ALU stands for?
ALU stands for Arithmetic Logic Unit
82.
What is the job of ALU?
The purpose of the ALU is to perform
mathematical operations such as addition, subtraction, multiplication and
division. Additionally, the ALU processes basic logical operations like
AND/OR calculations. Also known as the arithmetic logic unit, it serves as the
computational hub of the Central Processing Unit (CPU) for a computer system.
83.
What is MU stands for?
MU stands for memory unit
84.
What is the function of Memory Unit?
Functions of Memory Unit are
·
It
stores all the data and the instructions required for processing.
·
It
stores intermediate results of processing.
·
It
stores the final results of processing before these results are released to an
output device.
·
All
inputs and outputs are transmitted through the main memory.
85.
What is the function of Control Unit (CU)?
This unit controls the operations of all parts of computer. It is
responsible for controlling the transfer of data and instructions among other
units of a computer. It manages and coordinates all the units of the computer.
It communicates with Input / Output
devices for transfer of data or results from storage.
86.
What is difference between primary and secondary memory?
The memory which is directly accessible
by processing unit (CPU) is called primary memory and the memory which is not
directly accessible by processing unit (CPU) is called secondary memory.
87.
What is RAM stands for?
RAM stands for Random Access Memory
88.
Why the RAM is referred to as random access memory?
It
is referred to as random access memory (RAM) because it is randomly select and
use any location of the memory to store and retrieve data.
89.
What is difference between volatile and non volatile memory?
Volatile memory is also called as
temporary memory as it will hold memory temporarily. Non
Volatile Memory: A device which can hold data in it even if it is not connected
to any power source is called Non Volatile Memory.
90.
Define the DRAM
Dynamic Random Access Memory is the more common type. It is slower
because it needs to be refreshed thousands of times per second. DRAM supports
access times of about 60 nanoseconds. It is an inexpensive memory.
91.
Define the SRAM
Static Random Access Memory is faster than DRAM in term
of speed because it does not need to be refreshed. SRAM can give access times as low as 10
nanoseconds. Despite SRAM being faster, it's not as commonly used as DRAM
because it's so much more expensive.
92. What is ROM stands
for?
ROM stands for Read Only Memory
. What is the function
of ROM?
93.
What is BIOS stands for?
BIOS stands for Basic Input Output
System.
94.
What is PROM stands for?
PROM stands for Programmable Read Only
Memory
95.
What is EPROM stands for?
EPROM stands for Erasable Programmable
Read Only Memory
96. What is EEPROM stands for?
EEPROM stands for
Electrically Erasable Programmable Read Only Memory
97. Define the BIT
A bit (short for BInary
digiT) is the smallest unit of data/information that can be stored or
manipulated in a computer. A bit can have a binary value of either 0 or 1.
98. Define the Byte
A byte is a set of 8 bits that represent
a single character in the computer's memory. Bytes are used to measure file
sizes, hard disk space, and computer memory. Larger amounts of data are
measured in units such as megabytes, gigabytes, and terabytes.
99. Define the secondary storage
devices
Secondary storage devices are used to
store data and instructions permanently. These devices also
called auxiliary storage or external storage.
100. Define the magnetic tape
Magnetic tape is the oldest storage
device. It is made of plastic coated with magnetic material. Tape drive is used
to read and write data on tape. Magnetic disk is sequential access device.
101. Define the Floppy Disk
The Floppy Disk officially called
“diskette” is removable storage medium that consists of a thin and flexible
magnetic disk inside a plastic carrier. The 3.5 inches floppy disk can store 1.44 MB data.
102. Define the hard disk drive
A hard drive is a secondary storage
device that consists of one or more platters to which data is
written using a magnetic head, all inside of an air-sealed casing. The hard
disk drive is the main, and usually largest, data
storage hardware device in a computer. The operating system,
software titles, and most other files are stored in the hard disk drive.
103.
What is CD stands for?
CD stands for Compact Disk
104. What are types of CDs?
Types
of CDs are CD-ROM, CD-R (recordable) and CD-RW (re-writeable)
105.
What is DVD stands for?
DVD stands for Digital Versatile Disk or
Digital Video Disk
106.
What is BD stands for?
BD stands for Blu Ray Disk.
107.
Define the USB Flash Drive
Flash drive is the solid state storage
module that plugs into the computer's USB port. Using flash memory chips that hold
up to one terabyte of data. USB drives are extremely popular for backup as well
as data transfer from one machine to another.
108.
Define the software
Software represents the logical or
intangible parts of computer. Software is collection of different programs. A program
is series of instructions that tells the computer what to
do and how to do accomplish a particular task. Software is developed in a
computer programming language.
109.
What are major types of software?
There are two major software categories
the system software and application software.
110.
Define the system software
A program or
set of programs that is especially designed to control different operations of
computer system is called system software. It controls the working of different
components of the computer. The system also enables the other application
programs to execute properly.
111.
Write some popular operating systems names
Windows and DOS by Microsoft, Macintosh
by Apple, UNIX and Linux, Solaris by Sun Microsystems are some popular
operating systems.
112.
Define the application software
A program or set of programs that are
especially designed to solve the specific problems of users, are called
application software.
113.
What are categories of application software?
The
application software are divided into two main categories
1.
Custom-built software
2.
Packaged software
114.
Define the custom built software
Software that is developed for a
particular customer or organization is called custom built software. For
example, software developed to maintain the records of students of a particular
college is category of custom built software.
115.
Define the packaged software
The software that is developed for sale
to the general public is called packaged software. Packaged software is used to
solve some common problems of many people or users.
116. Define the programming languages
A
language used to write instructions for the computer is called programming
language. Programming language use vocabulary and set of
grammatical rules for instructing a computer to
perform specific tasks
117. What are main types of programming languages?
There are three main kinds of programming
language:
·
Machine
language
·
Assembly
language
·
High-level
language
118. Define the machine language
Machine
language is a low-level programming language. It is easily understood by
computers but difficult to read by people. It is written in a binary code of 0s
and 1s that represent electric impulses or off and on electrical states
respectively.
119. Define the assembly language
An assembly
language consists of a set of symbols and letters. A translator is
required to translate the assembly language to machine language. This
translator program is called the 'Assembler.' It is use terms
like MOVE, ADD, SUB and END.
120. Define the high level language
A HLL is computer
programming language that resembles natural language or mathematical
notation and is designed to reflect the requirements of a problem;
examples include Ada, BASIC, C, C++, COBOL, FORTRAN, and Pascal etc.
121. What are advantages of high level languages?
Advantages
of high-level languages are that they are very readable and portable.
122. What are disadvantages of high level
languages?
A disadvantage of high-level languages is that
they are less powerful than Assembly Languages. Because a single statement in a
high-level language is translated into many machine language
123. What are the names of translators used in
high level languages?
Compiler and interpreter are used as translator
in high level languages
124. Write the names of classes in high level
languages
Computer languages are classified into following
1. Functional languages
2. Procedural languages
3. Object oriented programming languages
4. Logic programming languages
125. Define the functional language
In
Functional language, a program is divided into function definitions. Some of
the famous Function languages are Scala, F#, Clojure and Lisp.
126. Define the procedural languages
In
Procedural Languages, a program is written in a sequence of steps that should
be followed to produce a result. COBOL, FORTRAN and C are some Procedural
languages.
127. Define object oriented programming languages
In OOP
languages, a program is divided into Object that contains data as well as
methods that operate on the data. Java, C# and C++ are examples OOP languages.
128. Define the logic programming languages
Logic
Languages are used to create programs which are based on the use of logical
formulas. Logic language and Prolog language are examples of logic languages.
129. Define the language translator
A
Compiler is a computer program that translates code written in a high
level language to a lower level language, object/machine code. The most common
reason for translating source code is to create an executable program
130. What is difference between source code and
executable code?
Programmers write programs in a form
called source code. The source code consists of instructions
in a particular language, like C or FORTRAN. Computers, however, can only
execute instructions written in a low-level language called machine language. Executable
code is the code that is translated by a translator and directly readable by
the machine.
131. Define the assembler
An
Assembler converts an assembly program into machine code. Assembly language
consists of mnemonics for machine opcodes so assemblers perform a 1:1
translation from mnemonic to a direct instruction.
132. Define the compilers
A compiler is
a special program that processes statements written in a particular high level programming
language and turns them into machine language or "code" that a computer's processor
uses.
133. Define the interpreter
An
Interpreter is a program that translates high-level source code into executable
code. The interpreter translates one line at a time and then executes it: no
object code is produced, and so the program has to be interpreted each time it
is to be run.
Multiple Choice Questions about Introduction of Computer
1. The term computer is derived from the word _________
a. commute b.
compute c. calculate d. copter
2. Computer accepts input in form of ___________
a. data
b. information c.
input d. all of these
3. Collection of raw _______________ is called data.
a. metals b. trees c. facts & figures d. grain
4. Numeric data contains ___________ numbers
a. positive b. negative c. integer d. all of these
5. Alphabetic data contains __________________
a.
alphanumeric b. alphabets c. numbers d. none of these
6. Alphanumeric data contains ____________________
a. numbers b. alphabets c.
symbols d. all of these
7. Graphic data contains _______________
a. pictures b. drawings c. charts d. all of these
8. The purpose of data processing is to produce
________________
a. data b.
information c. input d. none of these
9. Information is the ________________
a.
processed data b.
meaningful data c. useful data d. all of these
10. The use of information is to have ________________
a.
output b. decisions c. input d. processing
11. The speed of computer is measured in ______________
a. kilos b. meters c. bytes d. hertz
12. The storage capacity of computer is measured in _____________
a. bytes b. cycles c. data d. hertz
13.
Computers can perform several tasks at a time; this feature is known as
a. multi-national b.
multi-tasking c. multi-color
d.
multi-media
14. Analog computers are used to process _____________ data.
a. electronic b.
digital c. analog d. graphic
15. Analog computes can process _______________
a.
temperature b. pressure c. speed d. all of these
16. Digital computers process the digits, which are called
____________digits
a. binary b. ternary c. unary d. none of these
17. The binary digit 1 represents ON and 0 represents
______________
a. zero b. OFF c. digit d. none of these
18. The most commonly used type of computers is
______________
a. hybrid b. analog c. digital d. none of these
19. Most powerful digital computer is ______________
a. super b. analog c. personal d. digital
20. The computer used in large corporations, banks,
government agencies, research laboratories to manage huge amount of data, is
_________ computer.
a. mainframe b. super c. laptop d. notebook
21. The complete computer for personal use in home or at
office is known as
a. micro b. super c. mini d. mainframe
22. Examples of personal computers are ________________
a. desktop b. laptop c. palmtop d. all of these
23. A student can use computer for _____________
a. research
work b.
collecting information c. solving problems
d. all of above
24. Computers
are playing very important role for entertainment like ______.
a. playing games b.
watching movies c. listening music
d. all of these
25. Engineers and
technologists used the computer for ______ of information
a. collecting b.
processing c. storing & receiving
d. all of these
26. The major
uses of computer technology in engineering is with _________
software
a. communication b.
CAD c. system d. anti virus
27. Computer
aided design software is the application of computer technology
for ___________.
a. business b. entertainment c. logical designing d. home
28. Computer is
used in engineering for ____________.
a. CAD b. problem solving c. automation d. all of these
29. Major
component of computer are ______________.
a. hardware b. software c. hardware & software
d. none of these
30. All physical
and tangible components of computer are called _________.
a. hardware b. software c. data d. none of these
31. All logical
and intangible parts of computer are called ______________
a. hardware b. software c. hard disk d. none of these
32. Software is
collection of different computer _______________
a. devices b. programs c. information d. none of these
33. A computer
program is set of electronic _____________ that tell the
computer what to do and how to do a
particular task.
a. devices b. machines c. instructions d.
none of these
34. Major
software categories are the ______________.
a. application & utility software b.
system & business software
c. system & application software d.
utility software
35. ______
let you to input data and user command into the computer system.
a. output devices b.
memory devices c. storage devices
d. input devices
36. __________ displays
the result of input data or signals after processing it.
a. input devices b.
output devices c. processing devices
d. memory devices
37. The primary
and most important type of input device is ______________.
a. printer b. monitor c. keyboard d. scanner
38. Mouse is
type of _________________ devices.
a. pointing input b. processing c. output d. storage
39. Click, right
click, double click, drag and rotate wheel are some common
operations done by the _______________.
a. mouse b. keyboard c. joy stick d. light pen
40. __________
is an input device used to enter voice data into the computer.
a. keyboard b. light pen c. microphone d. joystick
41. Touch pad is
usually used in ________________ computers.
a. desktop b. palmtop c.
laptop d.
none of these
42. A _______
is a device that scans images from photographic prints, posters
magazine, pages, and similar sources for
computer editing and display.
a. mouse b.
printer c. camera d. scanner
43.
A user can interact with computer, smart phones and tablets without a
mouse or keyboard, using ______________.
a. touch pad b. touch screen c. touch stone d. none of these
44. The device used to display the video and graphics
information generated
by
the computer through the video card is _______________.
a. printer b. speaker c. monitor d. none of these
45. The device
used to display soft copy of data and information is ________.
a. monitor b.
keyboard c.
printers d. plotter
46. Types of
monitors are _____________.
a. CRT b. LCD
c. LED d. all of these
47. LCD stands
for _____________.
a. liquid crystal display b. labour control department
c. least common denominator d. none of these
48. LED stands
for _________________.
a. low energy demand b. light emitting
diode
c. light emitting display d. none of
these
49. CRT stands
for _________________.
a. child right trust b. cathode ray tube
c. computer remote terminal d. all of these
50. Number of
pixels on computer screen is known as _________________.
a. bit b. picture size c. screen resolution d. mega pixels
51. A printer is
an output device that prints ________________ on paper.
a. characters b.
symbols c. graphics d. all of these
52. The printed
output on papers provided by the computer is called________.
a. hardcopy b. hardware c. softcopy d. head copy
53. The printers
used pins and hammer that strikes against the paper through
ribbon are known as _________________.
a. non impact printers b.
impact printers c. ink printers
d. none of these
54. The printers
used heat, pressure; laser and ink for printing are known as
_______________.
a. impact printers b.
non impact printers c. wax printer
d. none of these
55.
_______________ printer is example of impact printers.
a. Dot Matrix b. Line c. daisy wheel d. all of these
56.
_______________ printer is example of non impact printers.
a. LASER b. Inkjet c. Thermal Wax d. all of these
57. Printing
speed of large laser printer is ______________ pages per minute.
a. 300 b. 200 c. 100 d. 50
58. In laser
printer the refillable ink container is called ________________.
a. cartridge b. toner c. carbon ribbon d. none of these
59. In Inkjet
printer the refillable ink container is called ________________.
a. cartridge b. toner c. carbon ribbon d. none of these
60. DPI stands
for ________________.
a. data processing installation b. dots per inch
c. digital printing and imaging d. none of
these
61. The speed of
Dot Matrix printer is measured in _____________
a. PPM b. CPM c. CPS d. none of these
62. In printers
CPS stands for _______________.
a. cycles per second b. counts per second
c. cost per second d.
characters per second
63. In printers
PPM stands for ______________.
a. pages per minute b. pay per minute
c. pulses per minute d. points per
minute
64. The printers,
prints characters and graphics on paper without striking on
paper are known as __________________.
a. impact printers b. digital printers
c.
non impact printers d. analog printers
65. The printer
works like a photo copier machine is known as ______ printer.
a. Laser b. Inkjet c. Dot Matrix d. Line
66. A big size
printer used to print maps, documents, posters, large size
drawings and geometric lines, is known as
___________________.
a. Inkjet printer b. drawing printer c. plotter d. laser printer
67. CPU stands
for ________________.
a. cost per unit b. cash processing unit c. central processing unit
d. none of these
68. The brain of
computer is called _______________.
a. hard disk b. CPU c. RAM d. mother board
69. Components
of CPU are ________________.
a. ALU b. CU c. MU d. all of these
70. ALU stands
for ________________.
a. application layer user b. automatic loading unit
c. arithmetic logic unit d. all
logic unit
71. MU stands
for _________________.
a. mobile unit b. multi-user
c. memory unit d. none of
these
72. CU stands
for _________________.
a. control unit b. computer unit c. central unit d. none of these
73. The
________________ section of ALU is used to perform arithmetic
operations like addition, subtraction,
multiplication and division.
a. calculative b.
logic c.
arithmetic d. none of these
74. The
________________ section of ALU is used to perform logic
operations such as comparing, selecting,
matching and merging of data.
a. calculative b. logic c. arithmetic d. none of these
75. The actual
execution of instructions happens in __________________.
a. CU b. ALU c. MU d. none of these
76. The memory
unit of CPU contains ____________ to hold (temporarily)
the data and instructions to be
executed.
a. registers b.
units c. houses d. blocks
77. The unit of
CPU which controls the operations of all parts
of computer is
known as _______________.
a. memory unit b. control unit c. arithmetic unit
d. logic unit
78. The memory
which is directly accessible by the CPU is called ________.
a. secondary memory b. temporary
memory
c. permanent memory d. primary memory
79. The memory
which is not directly accessible by the CPU is called _____.
a. secondary memory b. temporary
memory
c. primary memory d. none of these
80. As compare
to secondary memory, the primary memory of computer is
____________.
a. slow b.
cheap c. fast d. large
81. Example of
primary memory is ______________.
a.
RAM b. Cache Memory c. ROM d. all of these
82. Example of
secondary memory is ______________.
a. Hard disk b. Floppy disk c. CD d. all of these
83. RAM stands
for ____________.
a. read access memory b. remote access memory
c. random access memory d. real
access memory
84. RAM is
____________ memory of computer.
a. main b. permanent c. secondary d. none of these
85. The feature
of RAM is _____________.
a. temporary b.
volatile c. read/write d. all of these
86. The
____________ RAM is faster.
a. dynamic b. static c. automatic d. none of these
87. ROM stand
for ______________.
a. record only memory b. run of
memory
c. read only memory d. none of these
88. The memory
which requires a power source to hold information is called
_______________ memory.
a. non volatile b. tactile c. volatile d. none of these
89. The memory
that does not require a connection to a power source to
retain information is called
_______________ memory.
a. non volatile b. tactile c. volatile d. none of these
90. Which is
example of volatile?
a. ROM b. BIOS c. PROM d. RAM
91. The basic input/output system (BIOS) program is
stored in the ____ chip.
a.
RAM b. cache c. ROM d. none of these
92. BIOS is abbreviation of ______________.
a.
Basic Input Output System b. Best Input
Output System
c.
Basic Input Output Symbol d. Base Input Output
System
93. EEPROM stands for ________________.
a.
Electrically Erasable Programmable Read Only Memory
b.
Electronic Erasable Programmable Read Only Memory
c.
Easily Erasable Programmable Read Only Memory
d.
Early Erasable Programmable Read Only Memory
94. A ___________ is smallest unit of
data/information that can be stored in
a computer.
a.
boot b. bite c. bit d. none of these
95. A bit can have a binary value of either
______________.
a. 0
or 2 b. 0 or 1 c. 0 or -1 d. none of these
96. The base of binary number system is
_______________.
a.
0 b. 1 c. 2 d. 3
97. A byte is set of _______________ bits.
a.
1 b. 2 c. 4 d. 8
98. Bytes are used to measure _______________.
a.
file size b.
hard disk space c. computer memory
d.
all of these
99. 1 kilobytes is equal to _______________.
a.
1000 bytes b.
1024 bytes c.
1024 bits
d.
none of these
100. Which statement is valid?
a. 1 KB = 8 bytes b. 1 MB = 8KB c.
1 KB = 1024 bytes
d. 1 MB = 1024 bytes
101. Magnetic tape is ______________ device.
a.
direct access b. random
access c. sequential
access
d.
fast access
102. Floppy disk is ______________ storage
medium.
a.
removable b. fixed c. optical d. none of these
103. The 3.5 inches floppy disk can store
_______________ data.
a.
1.24 MB b. 1.34 MB c. 1.44 MB d. 1.54 MB
104. Which of the following device can store
large amounts of data?
a.
Floppy Disk b. Hard
Disk c. CDROM d. Zip Disk
105. In hard disks a _____________ is used to
read/write data.
a.
lens b. head c. disk reader d. none of these
106. When a hard disk undergoes formatting, it
is divided into ____________.
a.
tracks b. sectors c. both a & b d. none of these
107. CD stands for _____________.
a.
control data b.
change directory c.
compact disk
d.
car driver
108. A CD can hold up to ______________ MB of
data.
a.
900 b. 700 c. 1024 d. 1000
109. A CD _____________ disc is a compact
disc that can be written, erased,
and
written again.
a. RW
b. ROM c. R d. none of these
110. DVD stands
for ______________.
a. direct video disk b. digital versatile disk
c. digital video disk d. both b & c
111. A double layer DVD can hold up to ______________
GB of data.
a.
10 b. 13 c. 1024 d. 17
112. CD, DVD and BD are the ______________ type
of storage media.
a.
magnetic b. optical c. electrical d. none of these
113. BD stands for ______________.
a.
bio disk b. blu ray disk c. binary digit d. bank draft
114. USB Flash drive is often referred to as
________________.
a.
jump drive b.
pen drive c. thumb drive d. all of these
115. USB stands for ______________.
a.
united states bank b. universal serial Bus
c. uniform serial bus d. none of these
116. The software especially designed to control
different operations of
computer system are called
_______________ software.
a.
computer b. application c. system d. none of these
117. Example of system software is
______________.
a.
operating systems b. utility programs c. device drivers
d.
all of these
118. Example of operating systems is
_________________.
a. Windows
10 b. MS Word c. web browser
d.
anti virus
119. The software especially designed to solve
the specific problems of users
are called______________ software.
a.
operating systems b.
application c. system
d. none
of these
120. ______________ is the example(s) of
application software.
a.
commercial software b. games c. multimedia
d.
all of these
121. The software that is developed for sale to
the general public is called
_______________.
a. custom built software b. packaged software
c.
public software d. none of these
122. Software that
is specially developed for some specific organization or
other user are called_______________
software.
a. custom built b. packaged c. user
d. organization
123. A language
used to write instructions for the computer is called
_______________.
a. human language b. instruction language
c. programming language d. none of these
124. Signals can
be analog or digital and a computer that processes the both
type of signals is known as
_______________ computer.
a. analog b. digital c. hybrid d. mainframe
125. Type(s) of
programming languages is/are ________________.
a. machine language b. assembly
language
c. high level language d. all of these
126. The
programming language which is easily understood by the computer
but difficult to read by people is
known as ______________.
a. machine language b. assembly language c. high level language
d. none of above
127. The machine
language is also known as _______________.
a. high level language b. binary language c. assembly language
d. none of these
128. The machine
code contains ______________.
a. symbols b. decimal digits c. binary digits d. alphabets
129. Example of machine
code is _______________.
a. cout<< “hello” b. 01234567 c. 10011011
d. mov
x, counter
130. Assembly
language consists of _______________.
a. symbols b. symbols & letters c. letters
d. binary code
131. The
translation software for assembly language is called ____________.
a. assembler b. translator c. compiler
d. interpreter
132. The
computer language that resembles natural human language is known
as ____________.
a. low level language b. high level language c. mid level language
d. none of these
133. Which of
the following is a high level programming language?
a. MS Word b. C++
c. Chrome d. MS Excel
134. A high
level programming language in which a program is divided into
function definition is
____________________ language.
a. functional b. procedural c. object oriented
d.
logic programming
135. A high
level programming language in which a program is written in a
sequence of steps is _______________
language.
a. functional b. procedural c. object oriented
d. logic programming
136. A high
level programming language in which a program is divided into
objects is __________________ language.
a. functional b. procedural c. object oriented
d. logic programming
137. A high
level programming language in which is used to create programs
that enable the computer to reason
logically is _____________ language.
a. functional b. procedural c. object oriented
d. logic programming
138. The
translator software for high level language is/are _______________.
a. assembler b.
compiler c.
interpreter d. both b &
c
139. What is
compiler?
a. A compiler does a conversion line by
line as the program is run
b. A compiler converts the whole of a higher level program code into
b. A compiler converts the whole of a higher level program code into
machine code in one step
c. A compiler is a general purpose language providing efficient execution
d. None of the above
c. A compiler is a general purpose language providing efficient execution
d. None of the above
140. What is an
interpreter?
a. An interpreter does the conversion
line by line as the program is run
b. An interpreter is the representation of the system being designed
c. An interpreter is general purpose language providing efficient execution
d. None of the above
b. An interpreter is the representation of the system being designed
c. An interpreter is general purpose language providing efficient execution
d. None of the above
Answer Key
1
|
b
|
29
|
c
|
57
|
a
|
85
|
d
|
113
|
b
|
2
|
a
|
30
|
a
|
58
|
b
|
86
|
b
|
114
|
d
|
3
|
c
|
31
|
b
|
59
|
a
|
87
|
c
|
115
|
b
|
4
|
d
|
32
|
b
|
60
|
b
|
88
|
c
|
116
|
c
|
5
|
b
|
33
|
c
|
61
|
b
|
89
|
a
|
117
|
d
|
6
|
d
|
34
|
c
|
62
|
d
|
90
|
d
|
118
|
a
|
7
|
d
|
35
|
d
|
63
|
a
|
91
|
c
|
119
|
b
|
8
|
b
|
36
|
b
|
64
|
c
|
92
|
a
|
120
|
d
|
9
|
d
|
37
|
c
|
65
|
a
|
93
|
a
|
121
|
b
|
10
|
b
|
38
|
a
|
66
|
c
|
94
|
c
|
122
|
a
|
11
|
d
|
39
|
a
|
67
|
c
|
95
|
b
|
123
|
c
|
12
|
a
|
40
|
c
|
68
|
b
|
96
|
c
|
124
|
c
|
13
|
b
|
41
|
c
|
69
|
d
|
97
|
d
|
125
|
d
|
14
|
c
|
42
|
d
|
70
|
c
|
98
|
d
|
126
|
a
|
15
|
d
|
43
|
b
|
71
|
c
|
99
|
b
|
127
|
b
|
16
|
a
|
44
|
c
|
72
|
a
|
100
|
c
|
128
|
c
|
17
|
b
|
45
|
a
|
73
|
c
|
101
|
c
|
129
|
c
|
18
|
c
|
46
|
d
|
74
|
b
|
102
|
a
|
130
|
b
|
19
|
a
|
47
|
a
|
75
|
b
|
103
|
c
|
131
|
a
|
20
|
a
|
48
|
b
|
76
|
a
|
104
|
b
|
132
|
b
|
21
|
a
|
49
|
b
|
77
|
b
|
105
|
b
|
133
|
b
|
22
|
d
|
50
|
c
|
78
|
d
|
106
|
c
|
134
|
a
|
23
|
d
|
51
|
d
|
79
|
a
|
107
|
c
|
135
|
b
|
24
|
d
|
52
|
a
|
80
|
c
|
108
|
b
|
136
|
c
|
25
|
d
|
53
|
b
|
81
|
d
|
109
|
a
|
137
|
d
|
26
|
b
|
54
|
b
|
82
|
d
|
110
|
d
|
138
|
d
|
27
|
c
|
55
|
d
|
83
|
c
|
111
|
d
|
139
|
b
|
28
|
d
|
56
|
d
|
84
|
a
|
112
|
b
|
140
|
a
|
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