Computer science important short questions ICS Part 1

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Abdul Haseeb Ahmed (M-Phil)
Street 1/3 saleem town (Defence Colony) Kasur Ph# 0308-6872060

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Chapter-01
(Basics of Information Technology)
1 DFD stands for:
Data flow diagram
Data definition diagram
Digital flow diagram
Data flow design
2 MB stands for
Mega Byte Mega bit Master bit
Magnetic base
3 Bit stands for:
Binary Digit Byte digit Base digit
Basic digit
4 How many keys in standard keyboard?
110 115 111 102
5 Which of the following methods is used in
data gathering step of system analysis?
Interview Questionnaires
Sampling All
6 Which type of Diagram shows how
information flows through a system?
Logic flow chart Gant chart DFD
Decision table
7 Which of the following tasks is not part of
the systems analyst role?
Programming Coordination
Communication Planning
8 Which of the following is the first phase of
SDLC?
Design Coding
Preliminary investigation Analysis
9 One Gigabyte is equal to:
1000kb 1024MB
1024 x 1024 MB One million MB
10 Which of the following is an impact printer?
Dot-matrix printer Daisy Wheel printer
Line printer All
11 Laser printer is an example of:
Non-impact Inkjet
Impact Dot Matrix
12 A pixel may be displayed as:
White Blue Black All
13 Which keyboard is used most commonly?
DVORK TWRITER
SPLITTER QWERTY
14 Another name of main memory is:
Secondary memory
Permanent memory
Primary Storage
Tape Storage
Chapter 2
(Information Network)
1 A device that connect multiple network
using similar or different protocol.
Router Bridge Gateway None
2 DSL stand for:
Direct service Lease Domain Super Link
Distant Service Line Digital Subscriber
Line
3 FTP stands for:
File transfer protocol File tele program
Find tele Path none of them
4 Data link have two separate sub-layers.
LLC and MAC CS and MAC
Token and MAC MAC and FT
5 What layer of OSI models performs data
compression?
Network Data Link
Presentation Physical
6 Which of the following is not a network
communication device?
Router Hub LAN NIC
7 FDDI is a:
Star network Ring Network
Mesh Network Bus
8 Which is the most common LAN topology
for microcomputer LAN?
Bus Band Star Ring
9 A LAN is a combination of
Network adaptor cards LAN cable
LAN application software ALL
10 What type of network is the internet?
LAN MAN WAN None

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11 Two or more than two
computer/Communication device connect together,
known as a:
Internet MAN WAN Network
12 Each computer on a network is called a:
BUS Node Terminator None
13 A building network is a type of:
WAN MAN LAN Internet
14 NIC stands for
Network interface card
Network Identity Card
Network Internal Card None
Chapter-03
(Data Communication)
1 Unicode is a
16 bit code 32 bit code
64 bit code 128 bit code
2 Television and radio broadcast are example
of:
Full duplex half duplex
Simplex Asynchronous
3 How many characters can Unicode
represents
150000 Characters 10000 Characters
65536 Characters None
4 Which transmission allows data to travel in
both direction but only one direction at a time?
Simplex Half duplex
Full duplex Reverse duplex
5 Full communication is made possible by
devices called:
Full duplex Multiplexer
Half duplex none
6 Which of the following devices uses parallel
transmission:
Printer Keyboard Mouse None
7 Analog signal measure in:
Digits Hertz Volt WATS
8 The communication channel can be divided
into:
2 types 4 types 7 types 8 types
9 The dia meter of Fiber Optical cable is:
62.5 cm 62.5 microns
62.5 m 62.5 mm
10 Which of the following can severally effect
the quality of satellite transmission:
Moon Mountains
Light rays Bad weather
11 BCD code is _______;
4 8 16 32
12 BCD stands for
Byte coded decimal Base coded decimal
Binary coded decimal
Bidirectional coded decimal
13 Which of the following is not common
communication code:
Unicode Bilateral code
EBDIC ASCII
14 Which of the following feature is provided
with a modem:
Speeds Self-testing
Transmission rate all of these
Chapter-04
(Application and uses of computer)
1 All Banks are providing ______________
service.
Internet ATM LAN Online
Education
2 CBT software is used in:
Education Forecasting
Manufacturing None
3 Which of the following is not example of e-
commerce.
Electronic Banking Electronic shopping
Online Store Online Chatting
4 Most applications of robotics are in which
area?
Cooking Manufacturing
Teaching Farming
5 The fly-by-wire system is used in:
Medical field Airline
Education field none
6 Which of the following is relate to business?

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Marketing Stock exchange
Banks All
7 Which of the following is relevant to office
automation?
Document management system
Message handling system
Office supports system
All
8 MICR stands for:
Magnetic Card Reader
Magnetic Character Reader
Magnetic Ink Character Reader
None
9 CAT stands for:
Computerize Axial Topography
Computer Axial Topography
Computer aided topography
None
10 Computer based weather forecasting
depends on accurate collection of data from:
Television Weather station
Reader Antenna
11 Modern computer can perform calculations
or process at:
Per second per minute
Nino second none
12 CAL stands for:
Computer aided learning
Computer assist leaning
Computer added learning
None
13 A word processor can be used to:
Write text Edit text
Print text All
14 CBT stands for:
Computer based trade
Computer based training
Certificate based training
None
Chapter-05
(Computer Architecture)
1 ALU has _________ units.
2 3 4 5
2 Usually RAM has types:
1 2 3 4
3 CU stand for:
Cache unit Calculating unit
Calculate unit Control Unit
4 What is the main purpose of secondary
storage device?
Calculating Data
Temporary Storage of Data
Permanent Storage of data
Output of information
5 A program’s syntax errors are detected by:
Compiler Linker Loader Debugger
6 The external devices that are connected to a
computer system are known as:
Expansion Cards Peripherals
Buses Slots
7 Expansion are inserted into:
Slots Peripherals devices
CPU Back of the computer
8 Which is not a kind of register?
Flag Segment
Accumulator Math coprocessor
9 The size of accumulator register can be up
to:
4 bit 4 KB 4 bytes 4 MB
10 Which one is faster?
RAM Cache Register Hard Disk
11 Memory is made up of:
Set of wires Set of circuits
BIOS None
12 A characteristic of ROM if that it is:
Recursive online memory
Rapid online memory
Random only memory
Read only memory
13 Which is the brain of computer:
CPU RAM Motherboard System unit
14 Which is not output device:
Scanner Speaker Monito Printer

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All Text Book MCQS
CHAPTER 1 (information technology)
What is information technology?
Information technology is the technology that uses computing with high
speed communication link to spread information from one place to another.
Define data.
Raw fact and figure are called data. Example: no. of students in a
college.
Define information.
Information is organized or classified data which has some meaningful values
for the receiver. Information is the processed data on which decisions and
actions are based.
Example: no. of student get marks greater than 55.
What is computer?
A computer is a machine that accept data, process data into useful
information and store it for later use. A computer consist of hardware and
software.
Define software.
A set of instruction given to the computer to perform a specific task or solve
a problem is called a software. A software is also called a program.
What is operating system?
An operating system is a set of program that manage all computer
components and operations. A computer cannot work without operating
system.
Define hardware.
The physical part of computer are called hardware. Example RAM, CD-
ROM, HARD DISK etc.
Difference b/w application and system software.
System software is set of program to control and manage the operation of a
computer hardware. Application software is used to perform various
application on the computer. There are two main categories of application
software 1) customized software 2) package software
Difference b/w customized and package software.

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Customized software is a type of application software that is designed for a
particular customer or organization for the exact requirement of a particular
customer.
Package software is a type of application software that is developed for sale
to the general public. It is also known as off-the-shelf software.
Major components of computer.
Input device, output device, processor and storage device
What is input? Define input device.
Data that is given to the computer is called input.
Input device are used to input data and instructions into the computer.
What is output and output device?
Data that has been processed into useful information is called output.
Hardware components that are used to receive information from the computer
are called output device.
What is keyboard?
Keyboard is the most commonly used input device. A standard keyboard
contain over 100 keys.
What do you mean by QWERTY?
A standard keyboard normally called QWERTY, this is because the first six
key on the top row of letters are Q, W, E, R, T and Y.
What is function key?
Function key from F1 to F12 are used to perform special function.
What is pointing Device, name any four?
An input device used to control a pointer on the screen is called pointing
device.
1. Mouse
2. Touchpad
3. Joystick
4. Light pen
What is joy stick?
A joy stick consists of a base and a stick. The stick can be moved in any
direction to move an object around the computer screen.
Define barcode, UPC?
Barcode is an identification code that consist of a set of vertical lines and
spaces of different widths.
UPC stands for Universal Product Code.

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Difference b/w MICR, OCR and OMR?
MICR stands for magnetic ink character recognition reader. It is used to read
text printed with magnetic ink.
OCR stands for optical character recognition.it read printed character in
particular font and converts them into digital code.
OMR stands for optical mark recognition. It is also called mark sensing
device. OMR device detect marks such as circles and rectangles on specially
printed forms.
How is printer resolution measured?
Printer resolution is measured in dots per inch (dpi).
Define digital camera.
Digital camera is an input device.it stores image digitally in its memory
rather recording on film.
What is pixel?
Pixel stands for picture element. Pixel are the dots that form image on the
monitor
What are Arrow keys?
The arrows key are used to move the cursor position.
Difference b/w VGA, XGA, SVGA.
VGA stands for video graphics array.it support 16 to 256 color.it is called 4
bit color.
XGA stands for extended graphics array. It support 256 color.it is called 8 bit
color.
SVGA stands for super video graphics array. It support 16.7 million color.it
is called 24 bit color or true color.
What is CRT?
CRT stands for cathode ray tube. CRT monitor is the common form of
display screen. Its look like a television.
Difference b/w LCD and LED.
What is Plotter?
A plotter is used to produce high quality graphics in many colors and used for
specialized application. Example architecture drawings.
Difference b/w flatbed and drum plotter.
Flatbed plotter is used to plot or draw image.it contain pen for drawing
images.

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Drum plotter uses a rotating drum or cylinder. The drawing pen is mounted
on the drum
Difference b/w bit & byte.
One bit take one storage location in the memory
A collection of 8 bits is called one byte.
Conversion of GB, MB, KB, BYTE, BIT?
Name Size
Bit Single Binary Digit (1 or 0)
Byte 8 bits
Kilobyte (KB) 1,024 Bytes
Megabyte (MB) 1,024 Kilobytes
Gigabyte (GB) 1,024 Megabytes
Terabyte (TB) 1,024 Gigabytes
What is Feasibility study?
A feasibility study is used to find whether the proposed system is feasible.
What is E-commerce?
E-commerce (electronic commerce or EC) is the buying and selling of goods
and services, or the transmitting of funds or data, over an electronic network,
primarily the Internet.
Important long questions of chapter 1
1. Explain different type of impact & non-impact printer.
2. Discuss different type of network models.
3. What do you understand by “SDLC”? Discuss its steps properly.
HE IS THE KNOWER OF THE KNOWN AND THE UNKNOWN THE
MIGHTY AND MOST HIGH. (Ar-Ra’d 9/43)

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Chapter 2 (information network)
16. What do you know about page orientation?
There are two type of page orientation 1. Land scape 2. Portrait
21. What is Preliminary investigation?
Preliminary investigation means to conduct an initial analysis and findings of
the system.
23. What is CBT?
Computer based trainings is an interactive learning experience between the
learner and the computer in which the computer provides the majority of the
stimulus.
25. What is Operating system?
An operating system is system software that provides an interface for the user
to interact with the computer. The purpose of an operating system is to
organize and control hardware and software.
26. What is E-mail?
E mail stand for electronic mail. E Mail is the process of sending message
from one computer to another through internet.
28. What is FTP, TCP/IP?
FTP stands for file transfer protocol. Software tool use for transferring files
from one computer to another.
TCP/IP stands for transmission control protocol/internet protocol. TCP/IP is a
protocol used by every computer on internet
29. Difference b/w Intranet & Extranet.
An intranet is a privately owned, secure, business network based on internet
technology.
An extranet is two or more intranets connected in such a way that they enable
collaboration between companies.
30. Difference b/w Downloading and Uploading?
The process of transferring a file from a remote computer to our own
computer is called Downloading.
The process of transferring a file from our own computer to the remote
computer is called uploading.
31. What is gateway?
Gateway is a collection of hardware and software resources that let a node
computer communicate with a computer on other network.

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32. What is Router?
Router is a device that keep track of all possible routes that a message can
follow to be delivered to the destination.
33. Difference b/w LAN, MAN& WAN.
LAN local area network that spans a small geographical area such as a
building.
MAN metropolitan area network is a communication network covering a
geographical area the size of a city.
WAN wide area network that spans a large geographical area such as cities,
countries or continents.
34. Client Server & peer to peer Model.
Client server model is a well-designed system reduce the volume of data
traffic on the network and allows faster response at each node.
Peer-to-Peer: all computer in a peer to peer arrangement have equal status.
35. Difference b/w De facto& De jure Standards.
De facto means “by tradition” or “by fact”. These standards are most
commonly used by the organization.
De jure means “according to law or regulation”. The network governing body
have properly approved these standards.
36. Difference b/w Encoder &Decoder.
The encoder converts digital signal to a from, which can pass through
transmission medium.
Decoder again convert signal from encoded form into digital form.
Chapter 3 (Data Communication)
37. What is data Communication?
Data Communication is exchange of data between two devices via some form
of transmission media such as a wire cable.
38. Define Signals? Difference b/w analog and digital signal.
The electromagnetic or light waves representing data are called signals.
The analogous data signals are continuous electrical signal in the form of
wave.
A digital signal uses in-off electrical pulses in discontinuous or discrete form.
39. Difference b/w frequency and amplitude.
Frequency is the number of times a wave repeat during a specific time
interval.
Amplitude is the height of wave withy in a given period of time.

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40. Difference b/w ASCII & Unicode.
American Standard Code for Information interchange
41. Difference b/w Simplex, full duplex, half duplex.
Simplex is a mode in which data flows in one direction only.
In Half duplex transmission data can be sent and receive in both directions,
but not at the same time.
In Full duplex data is transmitted in both directions simultaneously on the
same channel.
42. Difference b/w asynchronous & synchronous transmission.
Asynchronous Transmission: A type of communication that sends data
using flow control rather than a clock to synchronize data between the source
and destination.
Synchronous Transmission: A type of transmission that uses a clock to
control the timing of bit being sent.
43. Difference b/w baseband & broadband.
Baseband it is communication technique in which digital signal are placed
onto the transmission line without change in modulation.
Broadbandit a technique of transmitting a large amount of data over long
distance simultaneously by modulation of each signal onto a different
frequency.
44. What is Fiber optic cable?
A fiber optic cable consist of tubes of glass through which data are
transmitted as pulses of light.
45. What is modem? & Difference b/w internal, external, wireless
modem
Modem: is a device that convert digital signal into analog form (called
modulation) and analog signals back to a digital signal (called
demodulation).it allow user to transmit data from one computer to another
using standard telephone lines.
Internal modem: is a circuit board that can be added to the system unit
through an expansion slot.
External modem: is attached to the system unit as an external device.

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Wireless modem: transmit data signals through the air instead of by using a
cable.
Chapter 4 (application and uses of computer)
46. Role of computer in Business, Medical.
In Business: computer use in marketing, stock exchange, banks,
departmental stores, e commerce, office automation, and industry.
In Medical: the computers are used in some area of medical fields such as
laboratories, scanning, monitoring and pharmacy etc.
47. What is robot?
A robot in an automatic programmable machine that moves and perform
mechanical tasks.
48. How computer use in office automation.
Use of advance computer technologies to perform various tasks in an office
system such as for document management system and office support system.
49. Difference b/w CU & ALU.
This unit uses other components of the computer to execute the instruction
given to the computer.
A special unit that has electronic circuits to perform the basic arithmetic and
logical operations on the data. This is called the arithmetic and logic unit.
50. Difference b/w serial and parallel transmission.
In Serial data transmission each individual bit of information travels along its
own communication path
In parallel data transmission flow of bits of data through separate
communication lines.
51. Difference b/w RAM & ROM.
RAM stands for random access memory. It is also called main memory,
program’s instruction and data are stored temporarily in RAM (volatile
memory)
ROM stands for read only memory. It is permanent memory and contains the
instructions requires in booting process.
52. What is ATM?

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Automate teller machine are provided by many banks, bank provide credit
card that are used to buy things on internet.
53. What is CAD, CAM?
CAD stands for computer aided design. CAD are used for display designs
and build production prototypes in software, test them as a computer object.
CAM stands for computer added manufacturing. CAM is used to control all
the part of a manufacturing process.
54. Difference b/w DRAM & SRAM.
DRAM dynamic RAM contents of this type of RAM need to be refreshed
periodically.
SRAM static RAM contents of this type of RAM don’t need to be refreshed.
55. Define I/O unit.
I/O (input/output), any operation, program, or device that transfers data to
or from a computer. Typical I/O devices are printers, hard disks, keyboards,
and mouses.
56. What is cache memory?
Cache memory usually has a small size as compare to the main memory in
the computer.
57. What is Fetch, Decode, Execute cycle?
Fetch: the processor fetches the instruction from the memory.
Decode: the instruction is decoded by the processor.
Execute: the processor execute the instruction, it stores 0 in register AX.
58. Difference b/w Compiler and Interpreter.
Compiler converts Source code to object code as a whole.
Interpreter convert source code to object code statement by statement.
59. What is Assembler?
Assembler convert assembly language to machine language.
60. Define source code & object code.
Code written in high level language is called source code.
Code written in low level level language/ machine level language are called
object ode.
61. Difference b/w high level language & low level language.

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High level language is near to human language, English like words. Example
c, c++, java, cobol, basic, fortran.
Low level language is machine language in binary form.
62. Define command line/prompt.
A command line is the space to the right of the command prompt in which
a user enters commands and data. It provides a means of communication
between a user and a computer.
63. Define security.
the protection of information systems from theft or damage to the hardware,
the software, and to the information on them, as well as from disruption or
misdirection of the services they provide.
64. What is virus? How we remove virus.
a piece of code which is capable of copying itself and typically has a
detrimental effect, such as corrupting the system or destroying data.
We can remove virus by installing antivirus software.
65. What is antivirus?
Anti virus is a software designed to detect and destroy computer viruses.
66. What is Boot Sector virus & write some causes of virus?
Boot-sector viruses infect computer systems by copying code either to
theboot sector on a floppy disk or the partition table on a hard disk.
Some causes of computer virus are:
 Downloadable Programs
 Cracked Software
 Email Attachments
 Internet
 Booting From CD
67. What is GUI operating system?
a graphical user interface is a way to communicate what you want to a
computer application (or computer operating system) using graphical
symbols rather than typing the instructions in.
68. What is Plug &Play?

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a standard for the connection of peripherals to personal computers, whereby a
device only needs to be connected to a computer in order to be configured to
work perfectly.
69. Define Disk Management or Disk Management Utility.
An umbrella term for a variety of functions for initializing a hard disk,
maintaining its health and managing its organization.
70. Define File Management.
A file management system is a type of software that manages data files in a
computer system.
71. Define window explorer.
Windows Explorer, is a file manager application that is included in
Microsoft Windows operating system. It provides a graphical user interface
for accessing the file systems.
72. What is print queue?
a series of files or documents that have been sent to a particular printer and
are waiting to be printed.
73. What is word processor?
a program or machine for storing, manipulating, and formatting text entered
from a keyboard and providing a printout.
74. Define Header and Footer in MS Word.
Headers and footers are pieces of text, or graphics, that appear at the top
and bottom of a page. After you set up a header and footer, they will appear
on all of your pages.
75. What is thesaurus?
Using the thesaurus, you can find synonyms (different words with the same
meaning) and antonyms (words with the opposite meaning).
76. Define Macros.
a single instruction that expands automatically into a set of instructions to
perform a particular task.
77. What is Undo & Redo?
Undo: a feature of a computer program that allows a user to cancel or reverse
the last command executed.

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Redo undoes the last Undo action.
78. What is spread Sheet software?
an electronic document in which data is arranged in the rows and columns of
a grid and can be manipulated and used in calculations.
a computer program used to create and manipulate spreadsheets.
79. Define Formula bar.
The formula bar is a feature in Microsoft Excel; this part of the software
appears at the top of the Excel window and allows users to edit or enter
information in the spreadsheet's cells.
80. Difference b/w relative and absolute referencing.
Absolute ranges have a $ character before the column portion of the reference
and/or the row portion of the reference. Relative ranges do not use the $
character.For example A1 is a relative range, while $A$1 is an absolute
range.
81. Define Function.
82. What is sheet in MS Excel?
A worksheet or sheet is a single page in a file created with an electronic
spreadsheet program such as Excel or Google Spreadsheets. A worksheet is
used to store, manipulate, and display data.
83. ARPA Stands for?
ARPA Stands for Advanced Research Projects Agency.
84. What is Internet?
Internet: A means of connecting a computer to any other computer anywhere
in the world via dedicated routers and servers.
85. What is IP Addressing?
a unique string of numbers separated by full stops that identifies each
computer using the Internet Protocol to communicate over a network.
86. Define DNS Addressing.
DNS. (Domain Name System) The Internet's system for converting
alphabetic names into numeric IP addresses.
87. Define web browser?

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A web browser is a software application for retrieving, presenting, and
traversing information resources on the World Wide Web.
88. What is WWW (World Wide Web)?
an information system on the Internet which allows documents to be
connected to other documents by hypertext links, enabling the user to search
for information by moving from one document to another.
89. What is URL (uniform resource locater)?
A URL stands for Uniform Resource Identifier the generic term for all types
of names and addresses that refer to objects on the World Wide Web. The
term "Web address" is a synonym for a URL that uses the HTTP or HTTPS
protocol.
90. Define Search Engine.
search engine: a computer program that is used to look for information on
the Internet
91. Write part of Email Address.
Ali@theschoolofit.com or ali@gmail.com ali (unique user name)
gmail(Domain name)
92. What is HTTP, HTML?
Http stand for hyper text transfer protocol
Html stand for hyper text markup language
93. Difference b/w Multitasking & Multiprocessing.
Multitasking, in an operating system, is allowing a user to perform more
than one computer task (such as the operation of an application program) at a
time.
Multiprocessing Refers to a computer system's ability to support more than
one process (program) at the same time.
94. What is password?
Sequence of characters (letters, numbers, symbols) used as a secret key for
accessing a computer system or network.
95. Name some famous antivirus.
 Norton Security.
 Avira.

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 Trend Micro.
 Avast.
96. How viruses may damage computer system?
Viruses affect your computer by corrupting files, interrupting Internet traffic
and taking over basic functions of your operating system.
97. Describe Bus and its types.
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98. Define the general-purpose registers.
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99. Explain the architecture of computer system.
Computer architecture refers to how a computer system is designed and
what technologies it is compatible with.
100. Difference b/w Address bus and control bus.
An address bus is a computer bus (a series of lines connecting two or more
devices) that is used to specify a physical address.
A control bus is (part of) a computer bus, used by CPUs for communicating
with other devices within the computer.
101. Difference b/w serial and parallel ports.
The main difference between a serial port and a parallel port is that a serial
port transmits data one bit after another, while a parallel port transmits all 8
bits of a byte in parallel. Thus a parallel port transmits data much faster
than a serial port.
102. Difference b/w linker and loader.
A loader loads the programs into the main memory from the storage device.

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A linker or link editor is a computer program that takes one or more object
files generated by a compiler and combines them into a single executable
file, library file, or another object file.
103. What is meant by computer simulation?
A computer simulation or a computer model is a computer program that
attempts to simulate an abstract model of a particular system.
or
Computer simulations build on, and are a useful adjunct to purely
mathematical models in science, technology and entertainment.
104. What is topology? Its types.
A Topology of the network defines the manner in which the network devices
are arranged and connected to each other in a network.
1. Bus Topology
2. Ring Topology
3. Star Topology
4. Tree Topology
5. Mesh Topology
105. What is DSL, ISP?
A digital subscriber line (DSL) modem is a device used to connect a
computer or router to a telephone line which provides the digital subscriber
line service for connectivity to the Internet, which is often
called DSL broadband.
An ISP (Internet service provider) is a company that provides individuals
and other companies’ access to the Internet and other related services such as
Web site building and virtual hosting.
In Pakistan PTCL is ISP
106. Difference b/w guided and unguided media.
Guided media are more commonly known as wired media, or
those media in which electrical or optical signals are transmitted through a
cables or wires.

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Unguided media are more commonly known as wireless media, in which
electromagnetic signals are sent through space with no direction.
107. Define barcode and barcode reader.
A machine-readable code in the form of numbers and a pattern of parallel
lines of varying widths.
Barcode readers consist of a light source, a lens and a light sensor that
translates optical impulses into electrical ones.
108. Importance of backup.
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109. Define DMA.
Direct memory access (DMA) is a method that allows an input/output (I/O)
device to send or receive data directly to or from the main memory,
bypassing the CPU to speed up memory operations.
110. RAM called volatile memory, Justify.
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111. Use of clipboard.
A clipboard is a temporary storage area for data that the user wants to copy
from one place to another.
112. 4 Different function of MS Excel.
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113. Define video conferencing.
Videoconferencing (video conference) means to conduct
a conference between two or more participants at different sites by using
computer networks to transmit audio and video data.
114. How we create web pages.
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We create web pages using HTML, CSS, JAVASCRIPT languages.
115. Define ARC NET.
ARCNET is a widely-installed local area network (LAN) technology that
uses a token-bus scheme for managing line sharing among the workstations
and other devices connected on the LAN.
116. Define Magnetic strip card.

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A Magnetic stripe card is a plastic card which has a magnetic stripe on it.
Different kinds of information can be stored on the magnetic stripe.
117. Use of recycle Bin.
When you delete a file in Windows it is usually not permanently deleted.
Instead, Windows moves the file to a special location called the Recycle Bin.
118. What is Bus interconnection?
----------Book----------
119. Define stack.
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120. Write 4 search engine.
Google Yahoo!
Amazon Bing
What is OP-code?
In computing, an opcode is the portion of a machine language instruction that
specifies the operation to be performed.
Important Long Question
1. Explain different type of non-impact printer.
2. Discuss different6 type of network models.
3. Explain Fetch-Decode-Execute cycle.
4. How we protect our computer system from virus. Types of virus
&Also explain causes of virus
5. What is transmission mode? Explain its types.
6. Discuss different function of operating system.
7. What is data communication? Explain the basic components of
communication network.
8. Discuss any three pointing devices.
9. Describe OSI Model? And type of OSI layers.
10. What is topology? Discuss the type of topology.
11. Difference b/w RAM and ROM. Type of RAM & ROM.
12. What is guided media? Briefly describe the guided media.

22
13. Discuss different security threats to data security. What are the
solution of these threats?
14. Define software. Discuss different type of software.
15. Define CPU explain its parts.
16. Explain different type of display screen.
17. What do you understand by “SDLC”? Discuss its steps properly.
18. What do you know about email?

Computer science important short questions ICS Part 1

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