Basic ICT Skills Class 9 MCQ

Important MCQs

Session 1: Introduction to ICT

1. ICT stands for __________________.
a. Information and Communication Technology
b. Informed and Communicated Technology
c. Informal and Communication Technology
d. None of the above

Hide Answer ⟵
a. Information and Communication Technology
2. _______ skills help us to communicate, run our business and stay
connected with our family and friends.
a. ICT
b. ITI
c. Mobile App
d. None of the above

Hide Answer ⟵
a. ICT
3. How we can save Information in digital form.
a. Using Computer
b. Hand Written on paper
c. Typed using typewriter
d. All of the above

Hide Answer ⟵
a. Using Computer
4. Which one is the ICT device__________.
a. Tablet
b. Smart Phone
c. Laptops
d. All of the above

Hide Answer ⟵
d. All of the above
5. The ICT skills that you need are
a. Knowing how to operate computer
b. Knowing how to browse the Internet for collecting
c. Storing and dissemination information
d. All of the above

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d. All of the above
6. Modern ICT employs a variety of media forms, which includes
a. Text & Graphics
b. Audio & Video
c. Animation
d. All of the above

Hide Answer ⟵
d. All of the above
Session 2: ICT Tools: Smartphone and Tablets – I
7. ____________ are some of the most popular smart phone operating
systems:
a. Android OS
b. Apple iOS
c. Windows Mobile
d. All of the above

Hide Answer ⟵
d. All of the above
8. A ___________ is a small computer with input, output and process.
a. Micro Computer
b. Mini Computer
c. Super Computer
d. Mainframe Computer

Hide Answer ⟵
b. Mini Computer
9. _____________ Device is used to receive broadcast audio sound.
a. Radio
b. TV
c. Computer
d. Laptop

Hide Answer ⟵
a. Radio
10. How does a Smartphone perform so many functions using –
a. Android App
b. Mobile Hardware
c. Computer Software
d. None of these

Hide Answer ⟵
a. Android App
11. Some of the apps are already present on the phone or tablet, These
are called __________ apps.
a. Android App
b. Apple App
c. Default App
d. None of the above

Hide Answer ⟵
c. Default App
12. __________ wireless portable personal computer with a touch screen
interface which makes it more useful than the notebook computer.
a. Tablet
b. Smartphone
c. Laptop
d. None of the above

Hide Answer ⟵
a. Tablet
Session 3: ICT Tools: Smartphone’s and Tablets – II
13. This is a short-range wireless technology that allows you to
communicate with other devices within 30 feet of you. You can send
messages and songs once you’ve linked.
a. Cellular network connectivity
b. Bluetooth
c. Both a) and b)
d. None of the above

Hide Answer ⟵
b. Bluetooth
14. This is a type of wireless network that allows you to connect to a
local area network. This is used to connect to the Internet and work with
e-mail, social media, and anything else that necessitates the use of the
internet.
a. Bluetooth
b. Wi-Fi
c. Cellular network connectivity
d. Global Positioning System

Hide Answer ⟵
b. Wi-Fi
15. This provides the network through which you can make calls.
a. Bluetooth
b. Wi-Fi
c. Cellular network connectivity
d. Global Positioning System

Hide Answer ⟵
c. Cellular network connectivity
16. It is a navigation (direction finding) system that helps you to
navigate, find direction and maps to specific locations.
a. Bluetooth
b. Wi-Fi
c. Cellular network connectivity
d. Global Positioning System

Hide Answer ⟵
d. Global Positioning System
17. _________ are used to interact with the touch screen of your mobile
device.
a. Display
b. Gestures
c. Status Bar
d. Apps
Hide Answer ⟵
b. Gestures
18. Tap and hold, this is similar to ____________ your mouse.
a. Left – Click
b. Right – Click
c. Double – Click
d. None of these

Hide Answer ⟵
b. Right – Click
19. What is the name of the technology used for short-range wireless
communication?
a. Wi-Fi
b. Internet
c. Bluetooth
d. PS

Hide Answer ⟵
a. Wi-Fi
20. On all pages, which part of the home screen is visible?
a. Status bar
b. Main icon area
c. Dock
d. Clock

Hide Answer ⟵
a. Status bar
Session 4: Parts of a Computer and Peripherals
21. In analog technology, information is translated into ________.
a. bits (0 and 1)
b. Electric Pulses
c. Mechanical Pulses
d. All of the above

Hide Answer ⟵
b. Electric Pulses
22. In digital technology, information is translated into ________.
a. Electric Pulses
b. bits (0 and 1)
c. Mechanical Pulses
d. All of the above

Hide Answer ⟵
b. bits (0 and 1)
23. A computer system is a ____________designed to store and retrieve
information and perform arithmetic and logical operations to produce
meaningful results in desired format.
a. Programmable machine
b. Analog Machine
c. Coding Machine
d. All of the above
Hide Answer ⟵
a. Programmable machine
24. Computer consists of three main units: Input Unit _____________
and Output Unit.
a. Central Processing Unit
b. Digital Unit
c. Computer Unit
d. None of these

Hide Answer ⟵
a. Central Processing Unit
25. Example of Input Device
a. Keyboard
b. Mouse
c. Scanner
d. All of the above

Hide Answer ⟵
d. All of the above
26. Example of Output Device
a. Monitor
b. Printer
c. Speaker
d. All of the above

Hide Answer ⟵
d. All of the above
27. ____________helps the user to enter raw data and instructions into
the computer system.
a. Input Unit
b. Output Unit
c. Central Processing Unit
d. None of these

Hide Answer ⟵
a. Input Unit
28. The __________ is divided into three parts, control unit (CU),
arithmetic and logic unit (ALU), and memory unit (MU).
a. Central Processing Unit
b. Input Unit
c. Output Unit
d. None of these

Hide Answer ⟵
a. Central Processing Unit
29. _____________ works as a receptionist and a corporate manager. It
receives all of the user’s commands and coordinates between various
sections to accomplish various activities.
a. Arithmetic Logic Unit
b. Control Unit
c. Memory Unit
d. None of the above
Hide Answer ⟵
b. Control Unit
30. _____________ unit perform all the mathematical and logical
calculations.
a. Arithmetic Logic Unit
b. Control Unit
c. Memory Unit
d. None of the above

Hide Answer ⟵
a. Arithmetic Logic Unit
31. ______________ is used to convert the information on a paper
document into a digital information document.
a. Barcode Reader
b. Printer
c. Scanner
d. Web Cam

Hide Answer ⟵
c. Scanner
32. In order to construct the receipt/bill, ____________ is used to record
the product purchased.
a. Barcode Reader
b. Printer
c. Scanner
d. Web Cam

Hide Answer ⟵
a. Barcode Reader
33. RAM stands for ___________
a. Read Access Memory
b. Read Applicable Memory
c. Random Applicable Memory
d. Random Access Memory

Hide Answer ⟵
d. Random Access Memory
34. ________________is usually an external device which is a mix of
both RAM and ROM.
a. Flash memory
b. Random Access Memory
c. Read Only Memory
d. All of the above

Hide Answer ⟵
a. Flash memory
35. _________ is also known as volatile Memory.
a. Read Only Memory
b. Random Access Memory
c. Flash Memory
d. None of the above
Hide Answer ⟵
b. Random Access Memory
36. _________ referred to as a system board and it is the main circuit
board inside a computer.
a. Mother Board
b. Hard Disk
c. Random Access Memory
d. Read Only Memory

Hide Answer ⟵
a. Mother Board
37. The smallest storage unit
a. Bit
b. Byte
c. KB
d. MB

Hide Answer ⟵
a. Bit
38. Bits is a Binary digit and it is represented as
a. 0 and 1
b. 1 and 9
c. A and B
d. None of the above

Hide Answer ⟵
a. 0 and 1
39. _______ bits make a 1 byte.
a. 32
b. 16
c. 8
d. 4

Hide Answer ⟵
c. 8
40. ________ bytes make a kilobyte
a. 1156
b. 1024
c. 1056
d. 1000

Hide Answer ⟵
b. 1024
41. ________ Kilobyte make 1 megabyte (MB)
a. 1156
b. 1024
c. 1056
d. 1000

Hide Answer ⟵
b. 1024
42. The slots or channels into which we connect the
mouse/keyboard/external hard disk wires are called ________.
a. Connector
b. Plug
c. Posts
d. None of the above

Hide Answer ⟵
c. Posts
43. USB Stand for ____________
a. Universal Serial Bus
b. Unit Serial Bus
c. Unit Serial Backup
d. Universal Serial Backup

Hide Answer ⟵
a. Universal Serial Bus
44. VGA stands for ____________
a. Video Graphics Array
b. Video Graphics Adapter
c. Video Graph Array
d. Video Graph Adapter

Hide Answer ⟵
a. Video Graphics Array
45. HDMI Stands for ____________
a. High Digital Media Interface
b. High Definition Multimedia Interface
c. High Definition Multi Interface
d. None of the above

Hide Answer ⟵
b. High Definition Multimedia Interface
46. __________ ports help to connect microphone, speakers and
headphones to a computer system.
a. VGA Port
b. Audio Port
c. Serial Port
d. Parallel Port

Hide Answer ⟵
b. Audio Port
48. _________ port is used for connecting the system to high speed
Internet cable.
a. Ethernet Port
b. Power port
c. Audio Port
d. VGA Port

Hide Answer ⟵
a. Ethernet Port
Session 5: Basic Computer Operation
49. A Computer system consists of two main parts_________ and
_________.
a. Hardware and Software
b. Physical and Logical
c. Both a) and b)
d. None of the above

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a. Hardware and Software
50. The most important software in any computer is _______________.
a. Antivirus Software
b. Operating System
c. Application Software
d. None of the above

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b. Operating System
51. Example of computer operating system__________
a. Ubantu
b. Windows 10
c. Mac OS
d. All of the above

Hide Answer ⟵
d. All of the above
52. Example of mobile operating system _______________
a. Apple iOS
b. Android
c. Microsoft
d. All of the following

Hide Answer ⟵
d. All of the above
53. BIOS stands for_______________
a. Basic Input/Output System
b. Beginners Input/Output System
c. Best Input/Output System
d. None of the above

Hide Answer ⟵
a. Basic Input/Output System
54. When multiple people use the same computer, each person has
his/her own files and applications.
a. In and Out
b. Login and Logout
c. Both a) and b)
d. None of the above

Hide Answer ⟵
b. Login and Logout
55. Keys labelled from F1 to F12 are ___________ keys.
a. Alphabetical keys
b. Special keys
c. Function keys
d. All of the above

Hide Answer ⟵
c. Function keys
56. Keys, such as Control (CTRL), SHIFT, SPACEBAR, ALT, CAPS LOCK
and TAB are special control keys that perform special functions
depending on when and where they are used.
a. Alphabetical keys
b. Special keys
c. Function keys
d. Control key

Hide Answer ⟵
d. Control key
57. Keys, such as the arrow keys, HOME, END, PAGE UP, and PAGE
DOWN are ____________ keys.
a. Alphabetical keys
b. Special keys
c. Navigation keys
d. All of the above

Hide Answer ⟵
c. Navigation keys
58. Keys, such as INSERT (INS), DELETE (DEL), and BACKSPACE are
___________ keys.
a. Alphabetical keys
b. Command Keys
c. Function key
d. All of the above

Hide Answer ⟵
b. Command Keys
59. ___________ key opens the start menu.
a. Windows key
b. Special key
c. Function key
d. All of the above

Hide Answer ⟵
a. Windows key
60. Which of the following functions is carried out with the help of a
mouse?
a. Turn on computer
b. Typing
c. Right click
d. Drag and Drop an Icon

Hide Answer ⟵
d. Drag and Drop an Icon
61. What is the term for moving the mouse around while pressing and
holding the left mouse key?
a. Highlighting
b. Dragging
c. Selecting
d. Moving

Hide Answer ⟵
b. Dragging
Session 6: Performing Basic file Operation
62. __________ helps to store all the information in the computer
system.
a. Files
b. Folder
c. Image
d. None of the above

Hide Answer ⟵
a. Files
63. What is extension of Notepad file
a. .txt
b. .jpg
c. .png
d. .mp3

Hide Answer ⟵
a. .txt
64. Extension of Image file __________.
a. .jpg
b. .png
c. Both a) and b)
d. None of the above

Hide Answer ⟵
c. Both a) and b)
65. To paste a file, which of the following shortcut keys is used?
a. Ctrl + C
b. Ctrl + P
c. Ctrl + V
d. Ctrl + X

Hide Answer ⟵
c. Ctrl + V
66. Which of the following is an appropriate Notepad file extension?
a. .jpg
b. .doc
c. .text
d. .txt

Hide Answer ⟵
d. .txt
67. When you copy something, what key do you use?
a. Ctrl+X
b. Ctrl+C
c. Ctrl+Z
d. Ctrl+T

Hide Answer ⟵
b. Ctrl+C
Session 7: Communication and Networking – Basics of
Internet
68. WWW stands for____________
a. World Widest Web
b. World Wide Web
c. Word Wide Web
d. None of these

Hide Answer ⟵
b. World Wide Web
69. If your computer is connected to the Internet, you say that your
computer is ________.
a. Online
b. Offline
c. Both a) and b)
d. None of these

Hide Answer ⟵
a. Online
70. You can get the latest information about anything that is uploaded on
the web, whether it is the result, news about an earthquake, a cricket
match or the election details.
a. News Website
b. Youtube
c. Search Engine
d. None of the above

Hide Answer ⟵
c. Search Engine
71. You can talk or send messages to people all around the world
quickly and easily.
a. E-mail
b. Chatting
c. Both a) and b)
d. None of the above

Hide Answer ⟵
c. Both a) and b)
72. You can do banking operations, like checking details of your bank
account or transferring money from one account to another through
mobile banking/NEFT/RTGS.
a. Social Networking
b. Online Banking
c. Online Learning
d. Online Shopping

Hide Answer ⟵
b. Online Banking
73. Your hobbies, knowledge, and stories can be shared with family and
friends all around the world.
a. Social Networking
b. Online Banking
c. Online Learning
d. Online Shopping

Hide Answer ⟵
a. Social Networking
74. ISP stands for ________________.
a. Internet System Provider
b. Interanet Service Provider
c. Internet Service Provider
d. None of the above

Hide Answer ⟵
c. Internet Service Provider
75. When our computer is connected to the Internet using a wire, it is
called a ______________.
a. Wireless Connection
b. Wired Connection
c. Both a) and b)
d. None of the above

Hide Answer ⟵
b. Wired Connection
76. We use _____________ cables to connect to the modem which
connects to the modem which connects to the ISP using a phone line.
a. Ethernet Cable
b. Router
c. Hub
d. Repeater

Hide Answer ⟵
a. Ethernet Cable
77. _____________is amount of data that may be transmitted via a
network in a given amount of time is called .
a. Ethernet Cable
b. Bandwidth
c. Hub
d. Repeater

Hide Answer ⟵
b. Bandwidth
78. The bandwidth is usually expressed in ___________ .
a. Bits Per Second (bps)
b. Bytes Per Second
c. Both a) and b)
d. None of the above

Hide Answer ⟵
c. Both a) and b)
79. In the analog devices the bandwidth is expressed in ____________.
a. Cycles Per Second
b. Hertz (Hz)
c. Both a) and b)
d. None of the above

Hide Answer ⟵
c. Both a) and b)
80. Data transfer speed over the networks is calculated in terms of
_____________.
a. Bits Per Second (bps)
b. Bytes Per Second
c. Both a) and b)
d. None of the above

Hide Answer ⟵
c. Both a) and b)
81. 1 Kbps (Kilobits per second ) = ___________.
a. 1000 bits per second
b. 2000 bits per second
c. 1024 bits per second
d. 3000 bits per second

Hide Answer ⟵
a. 1000 bits per second
82. An Internet __________ is an application or a Software program on
your computer or laptop which helps you visit the various websites.
a. Search Engine
b. Browser
c. Website
d. None of the above

Hide Answer ⟵
b. Browser
83. To connect to the Internet, the computer has to be connected to the
____________________.
a. Internet Society
b. Internet Architecture
c. Internet Service Provider
d. Large Area Network

Hide Answer ⟵
c. Internet Service Provider
Session 8: Communication and Networking – Internet
Browsing
84. It is a vast network of linked hypertext files, stored on computers
throughout the world, that can provide a computer user with information
on a huge variety of subjects.
a. World Wide Web
b. Browser
c. Search Engine
d. None of the above

Hide Answer ⟵
a. World Wide Web
85. If you click, it will take you to another part on the same page or to a
different page.
a. Address
b. Hyperlinks
c. Both a) and b)
d. None of the above

Hide Answer ⟵
b. Hyperlinks
86. You are not seeing the entire page correctly. By pressing the button,
you can reload the page.
a. Back Button
b. Refresh Button
c. Reset Button
d. None of the above

Hide Answer ⟵
b. Refresh Button
87. What do I need to access information on the Internet?
a. Computer
. Browser
c. Internet Connection
d. All of the above

Hide Answer ⟵
d. All of the above
88. Identify the web browser?
a. Internet
b. Chrome
c. Windows
d. None of the above

Hide Answer ⟵
b. Chrome
Session 9: Communication and Networking – Introduction
to a Mail
89. __________ is a message sent over the Internet from one person to
another.
. Mail
b. E-Mail
c. Speed Post
d. Registry Post

Hide Answer ⟵
b. E-Mail
90. A message delivered through the Internet from one person to
another is known as electronic mail. First part is known _________ and
the second part is known as ________.
a. User name & Domain name
b. Name & address
c. Name type & address
d. None of the above

Hide Answer ⟵
a. User name & Domain name
Session 10: Communication and Networking – Creating an
E-Mail Account
91. Which of the following is a popular E-Mail provider.
a. Gmail
b. Yahoo
c. Outlook
d. All of the above

Hide Answer ⟵
d. All of the above
92. To sign in to your Gmail account, follow these instructions.
(1) Type the username
(2) Go to web browser and type www.gmail.com
(3) Click on Sign in button
(4) Type the password

Choose the option with the correct order.

a. 1 > 2 > 3 > 4
b. 1 > 2 > 3 > 4
c. 2> 1 > 4 > 3
d. 2 > 4 > 1 > 4

Hide Answer ⟵
c. 2> 1 > 4 > 3
Session 11: Communication and Networking Writing an E-
Mail
93. You can use the _________option to save an incomplete email
without sending it.
a. Save as Draft
b. Sent Items
c. Trash
d. Inbox
Hide Answer ⟵
a. Save as Draft
94. What is an E-Mail address made up of?
a. Domain name followed by user’s name
b. User’s name followed by postal address
c. User’s name followed by domain name
d. User’s name followed by Street address

Hide Answer ⟵
c. User’s name followed by domain name
95. What does Carbon Copy (CC) mean?
a. Recipients are visible to all of the other recipients of the message in CC
b. Recipients are invisible to all of the other recipients of the message in CC
c. Recipients are invisible to only one recipient of the message in CC
d. None of the above

Hide Answer ⟵
a. Recipients are visible to all of the other recipients of the message in CC
96. If you want to receive mail from other person, you need to
__________ the message.
a. Forward
b. Reply To
c. Reply All
d. Copy

Hide Answer ⟵
a. Forward
97. Which of the following is mandatory for sending an email?
a. Body
b. Attachment
c. Sender Mail ID
d. Subject

Hide Answer ⟵
c. Sender Mail ID
98. The _______________ folder holds e-mails that may not be useful.
a. Trash
b. Drafts
c. Junk/Spam
d. None of the above

Hide Answer ⟵
c. Junk/Spam
99. The _______________ can or folder holds e-mails that you no longer
need and have deleted.
a. Trash
b. Draft
c. Junk/Spam
d. None of the above

Hide Answer ⟵
a. Trash
100. In the “To” area, what do you type?
a. The topic of the e-mail
b. The main message of the e-mail
c. Email address of the person to whom a copy of the e-mail should be sent
d. Email address of the person you are sending the mail to

Hide Answer ⟵
c. Email address of the person to whom a copy of the e-mail should be sent
Session 12: Communication and Networking Receiving
and Replying to E-Mail
101. Imagine your friend sends you an e-mail. The e-mail will appear in
your ___________.
a. Inbox
b. Trash
c. Draft
d. None of the above

Hide Answer ⟵
a. Inbox
Basic ICT Skills FAQs
Q1. What are basic ICT skills?

Full form of ICT is Information and communication technology. The goal of ICT
is to bridge the gap between parents, educators, and students by encouraging
sustainable, cooperative, and transparent communication methods.

Q2. Which ICT skills you need at home Class 9?

1. Internet Connectivity
2. Video conferencing Software
3. Social Media sites
4. Always switch off the computer properly
5. Always use strong user name and password
6. Keep your information private
7. Store your file is proper folder
Q3. Which of the following is not the basic ICT skills?

ICT is important in daily life, ICT device is include hardware and the
application both.
The following devices are not consider as ICT device.
1. Radio
2. Refrigerators
3. Typewrite

Q4. Which of the following is considered as ICT device *?

ICT device is include hardware and the application both.

The following devices are consider as ICT device.
1. Computer
2. Smart Phone
3. Satellite
4. Smart TV

SHORT QUESTIONS ANSWERS

Basic ICT Skills Class 9 Questions and Answers

Session 1: Introduction to ICT

1. Objectives of Information and communication

technology? Advantages and disadvantages of ICT.
Answer – Full form of ICT is Information and communication technology. The
goal of ICT is to bridge the gap between parents, educators, and students by
encouraging sustainable, cooperative, and transparent communication
methods.

Advantages of ICT

 Enhanced the modes of communication

 Independent learning platforms Cost – efficient
 Enhanced data and information security
 Paperless – Eliminate the usage of paper
 Better teaching and learning methods
 Web – based LMS tools
Learning Resources for Students
CBSE Board Exam Revision Guides
Disadvantages of ICT

 Traditional book and handwritten methods are at risk.

 Managing courses online is difficult
 Teachers require experience to handle ICT
 Risk of cyber attacks and hacks
 Misuse of technology
Session 2: ICT Tools: Smartphones and Tablets – I

2. What are the default apps installed on smartphones?

Answer – Some of the default apps installed on smartphones are

 Camera
 Phone
 Calendar
 Mail
  Maps
 Clock
 Message
 Web Browser
 Music
 Google Play store
 Apple Store
3. Differentiate between smartphone vs. tablet.
Answer – Smartphone – Smartphones are just like a phone with some
additional features, Smartphones are compact and easy to use. Operating
systems are the main software. Some of the smartphones use Apple iOS,
some are using Android OS or some are using Microsoft OS. editing the
videos or photos is difficult on the smartphone.

Tablet – It is a portable personal computer with a touchscreen interface

which makes it more user friendly than the notebook computer. Android OS,
Apple iOS or Windows OS are the most common operating systems used in
the tablet. As compared to smartphones, tablet screens are bigger in size.

Session 3: ICT Tools: Smartphones and Tablets – II

4. What are the features of mobile devices?

Answer – Some of the features present in mobile devices are

 Bluetooth: Bluetooth is a wireless technology which connects with

other Bluetooth devices within 30 feet, you can send photos, songs or
video with the help of the Bluetooth.
 Chargeable Battery: This is a portable power bank which can be
recharged. if once the battery is charged you can use this device
anywhere.
 Wi-Fi: Wi-Fi stands for Wireless Fidelity, basically it is a wireless
network technology that connects your device to the internet or you can
connect to the local area network also.
 Touch Screen: Touch Screen is an interface where you can manage
your device. Whatever information you want to type in the device you
can type using the touch screen.
 Cellular network connectivity: Cellular network connectivity provides
the network through which you can make calls.
 Global Positioning System: It is a navigation system which helps you
to find the direction of place using a map.
5. What is the purpose of gestures in mobile devices?
Answer – Gestures help users to interact with the touchscreen. for example if
you want to open an app instead of clicking you just touch the app the
application will be open.

Some of the gestures in mobile phone are

  Tap and hold: Tap and hold is similar to right-clicking on a computer.
 Swipe: Swipe the finger to right, left, up or down on the screen,
automatically the page will move to the next page.
 Tap: Touch the screen with your finger, once, to click.
 Double tap: Tap the screen twice time quickly the screen will zoom, it is
used to making the word appear bigger.
 Drag: To tap, hold and move your finger across the screen.
 Pinch: To bring your thumb and finger together on the screen
automatically the screen will be zoomed in. it is used to making the
word appear smaller.
Session 4: Parts of a Computer and Peripherals

6. What is the basic function of a Computer?

Answer – A computer is an electronic device which can accept data from the
user, process the data and generate meaningful results. Computer have a
three main units –

1. Input Unit,
2. Central Processing Unit (CPU) and
3. Output Unit.
7. What are the different parts of the CPU?
Answer – A computer is made up of multiple parts that work together to
perform the processing and effective functioning of the computer. The CPU
performs all the basic arithmetic and logical operations of the computer.

There are three main components of a CPU (Central Processing Unit)

1. Arithmetic and Logic Unit (ALU)

2. Control Unit (CU)
3. Memory Unit (MU)
 Arithmetic and Logic Unit (ALU) – Arithmetic and logical unit performs
all arithmetic and logical operations. for example subtraction, addition,
division and multiplication.
 Control Unit (CU) – Control Unit instructs the computer system to
perform a particular task. It takes instructions from memory and
executes them.
 Memory Unit (MU) – Memory Unit used to store data or instructions.
there are two type of memory unit
 Primary Memory – Primary memory is also known as main memory.
This memory is directly accessed by the microprocessor. Primary
memory have two type RAM and ROM
 RAM – RAM stands for Random access memory it is short term
memory, RAM is also known as Volatile memory and it stores
data temporarily.
 ROM – ROM stands for Read only memory it is long term
memory, ROM stores the data permanently.
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  Secondary Memory – The device which is used to store data
permanently with the help of external devices is known as Secondary
memory. Example – Hard Disk, Flash drive, External drive etc.
8. What is Motherboard?
Answer – A motherboard provides connectivity between the hardware
components of a computer. It is also the backbone of the computer and
shares the information between them. It is a main circuit board inside a
computer that connects input, processing and output devices.

9. How is the data measured in the computer?

Answer – In the memory devices data is stored in the form of bits and bytes.
Bit is the smallest unit which represents 0 or 1. combination of eight bits make
a one byte. which store the numerical, letters or symbols value in the memory.

 8 Bits = 01 Byte
 1024 Bytes = 01 Kilobyte (KB)
 1024 Kilobyte (KB) = 01 Megabyte (MB)
 1024 Megabyte (MB) = 01 Gigabyte (GB)
 1024 Gigabyte (GB) = 01 Terabyte (TB)
10. Where are the different ports in the computer system?
Answer – A port is a physical docking point using which an external device
can be connected to the computer. We can connect our keyboard, mouse,
printer and scanner through the port

There are several types of ports that you can use to connect a computer
to external devices.

 Universal serial bus or the USB port – USB port is used to transfer
data, It also works as an interface for peripheral devices. It connects,
such as a mouse or a keyboard or a printer to a computer using the
cable.
 Display port – Separate video connector is used for transmitting only
video signals. Display port connect the monitor to the display unit.
Different types of video connector are available, like High Definition
Multimedia Interface (HDMI) and Video Graphics Array depending on
the requirement.
 Audio ports – Audio ports are used to connect speakers or other audio
devices with the computer. like headphones, speakers or microphone.
headphones and speaker port is known as line out port and microphone
port is known as line in port.
 Ethernet – Ethernet port is used for connecting computers to the
network, with the ethernet port we can transfer data from one computer
to another or we can transfer high speed internet.
 Power port – Power port is used for connecting the computer system to
the power supply.
Session 5: Basic Computer Operations
11. Difference between Hardware and Software?
Answer – A computer system consists of two main parts – the hardware and
the software.

 Hardware – The physical parts of the computer are hardware, hardware

devices can be touch and feel. for example Mouse, Keyboard, Monitor,
CPU, etc.
 Software – Software is made by programs; it is a set of instructions
used to execute specific tasks. for example Microsoft Office, Operating
System, Photo editing software.
12. In computer systems, what is the function of the
BIOS?
Answer – BIOS stands for Basic Input/ Output
System, Computer automatically runs a basic program called BIOS as soon
as it is switched on or the power button is pushed on. The BIOS first does a
self-test. If the self-test shows that the computer is fine, the BIOS will load the
Operating System.

13. What are the different types of keys in Keyboard?

Answer –

 Function keys – F1 to F12 are function keys in the keyboard, function

keys are used for specific purposes.
 Control keys – SHIFT, CONTROL (CTRL),ALT, SPACEBAR, TAB
AND CAPS LOCK are known as a control key, these keys are used as
per the demand.
 Enter key – ENTER or RETURN keys are known as Enter key,
depending on the brand of computer that you are using.
 Punctuation keys – It includes keys for punctuation marks, such as
colon (:), semicolon (;), question mark (?), single quotation marks (‘ ’),
and double quotation marks (“ ”).
 Navigation keys – END, HOME, PAGE DOWN, PAGE UP and Arrow
keys are known as navigation keys, these keys are used to move up,
down, left or right in the document.
 Command keys – BACKSPACE, INSERT (INS) and DELETE(DEL) are
known as command keys. INSERT key allows you to overwrite
characters to the right side. The DELETE command key and
BACKSPACE key are used to remove typed text, character, or any
other objects from the right and left side of the cursor.
 Windows key – Windows key is used to open the Start menu.
Session 6: Performing Basic File Operations

14. What are files and folders in a computer system?

Answer –
  File – File is a collection of information different types of files store
different types of information. Every file has a file name and extension
that identifies the type of file.
 Folder – Folder is a collection of files or a group of files.
Session 7: Communication and Networking – Basic of
Internet

15. What is Bandwidth?

Answer – Bandwidth is the amount of data that can be transferred or received
every second. and it is measured by bps (Bite per second). For example, In
the water pipe the amount of water transmitted in a certain time is known as
bandwidth. The maximum amount of water that can flow through the pipe is
maximum bandwidth. Similarly, the amount of data that can be sent or
received in the network depends on the bandwidth.

Bits per second is the unit of measurement for bandwidth (bps) in computer
networks and in analog devices it is measured as a cycle per second.

Data transfer speed measured by the bits per second.

 1 Kbps (kilo bits per second) = 1,000 bits per second

 1 Mbps (megabits per second) = 1,000 kilobits per second
 1 Gbps (gigabits per second) = 1,000 megabits per second
Session 8: Communication and Networking –
Internet Browsing

16. What is the World Wide Web?

Answer – WWW stands for World Wide Web, it is also known as a Web. Web
is a collection of websites and a website is a collection of web pages. All
websites and webpages are stored in the web server. The Web is a vast
network interlinked with each other.

It is made up of

 A web page
 A web browser
 A system to transfer information between the web browser and the web
pages
Session 9: Communication and Networking
Introduction to Email

17. What is email?

Answer – An electronic communication invented in the 1970s to do
communication faster, Email is fast and easy to use and it can be sent to
multiple people at the same time, Email containing videos, documents,
spreadsheets etc. can be sent along with the email as attachments.

Session 10: Communication and Networking –

creating an email account

18. Differentiate type of email provider?

Answer – If you want to create an email account, you can follow any one of
the provider

 Gmail (run by Google)

 Yahoo mail (run by Yahoo)
 Outlook mail (run by Microsoft)
Session 11: Communication and Networking –
Writing an email

19. Differentiate between CC & BCC?

Answer –

 CC – When you want the email list to be visible to all recipients, and you
want to include all the recipients.
 BCC – When you want to include additional recipients but don’t want
the recipient to know who else is receiving the email.
20. What are the different types of folders in email?
Answer – There are different folders that could help you manage and
organize your emails.

 Inbox – By default email is received in the inbox.

 Send – Send folder store emails that you have sent to other peoples.
 Drafts – When you are writing an email and you have not sent the email
to any other user, that time email will be stored in draft by default.
 Trash – Trash holds deleted email from the inbox. To delete an email,
you select an email and then click on the Delete button for it to be
moved from inbox to trash folder
Session 12: Communication and Networking –
Receiving and Replying to email.

21. In email, what is the difference between respond and

forward?
Answer –
 Reply – Replying to an email means that you are answering the mail
you have got.
 Forward – Forwarding an email is sending the mail to someone else
the way you have got.