ICT Skills Class 9 Notes

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ICT Skills Class 9 Notes

Introduction

ICT stands for Information and Communication Technology. ICT includes computers, the Internet, broadcasting technologies (radio and television) and telephony.

The various ICT tools that are used include computers, smartphones, Internet for communication through e-mail and social networks, watching movies and TV shows, etc

ICT skills help us to communicate, run our business and stay connected with our family and friends.

Session 1: Introduction to ICT

When information is stored and recorded on electronic devices (tablet, smartphones, laptop), it takes on a ‘digital’ form. The basic ICT skills that you need are:

knowing how to operate computers; and
knowing how to browse the Internet for collecting, storing and disseminating information.

ICT at Workplace

At workplace, we use computer software and applications to complete tasks like making documents, calculations, tables, graphs, etc.

We can also use applications to do every day work, like buying things, booking train or bus tickets, Internet
banking and making online payments.

So employees are expected to possess a sound knowledge of all these to work independently on various software and computers.

ICT at Home

We use computers and mobile phones for talking to each other, sending and receiving information, watching videos and news, listening to music and playing games.

ICT Skills Class 9 Notes

Session 2: ICT Tools: Smartphones and Tablets — I

Smartphones and tablets are very important as we use them in daily activities like sending e-mails and messages, sharing pictures, etc. Smartphones are now being used to stay connected with social media and exchange information.

Smartphones

Smartphone can be used to make calls and do things that we normally do using a computer, such as browsing the web, sending e-mails, making video calls, playing games, listening to music, watching movies and much more.

Some of the popular operating systems for smartphones are Android OS, Apple iOS and Windows Mobile.

Tablets

A tablet is a mini computer with input, output and processing functions that are all combined into one ‘touchscreen’, where you can do various tasks just by touching its screen. It is bigger than a smartphone.

Difference between Smartphone and Tablet

Smartphone	Tablet
Screen size is smaller	Screen size is bigger
Watching a movie or making changes to a picture is difficult	Watching videos and making changes to a photo is better and easier due to bigger screen size
You need to charge phones more often	Usually have a longer battery life

Applications or apps

Apps are software programs that perform different functions. Some of the apps are already present on the phone or tablet. These are called “default” apps. Besides, there are hundreds of apps that can be purchased and downloaded or downloaded free of cost from online stores like Google Play Store for Android and Apple App Store for Apple.

Commonly found applications

Some of the default Apps installed on smartphones and simple mobile phones

App Name	Description
Phone	This app is used to make calls
Calendar:	It Shows a calendar and we can also enter appointments, reminders, etc.
Camera	It helps to capture photos and Videos.
E-mail	This app is used to send and receive E-mail.
Photos	This app stores all your Photos and Videos.
Clock	This app shows time and also help to set alarms, timers etc.
Maps	This app help us to find the direction of our destination. It uses GPS.
SMS	This app is for sending and receiving messages
Browser	This app help us to browse the Internet.
Music	This app is for listening music.
Google Play Store	This is Google Play Store from where we can download apps.(Paid or Free)
Apple Store	This is Apple Play Store from where Apple users can download apps(Paid or Free)

Basic ICT Skills Class 9 NOTES

TV and Radio

TV and radio are being used as an ICT tool since a long time. Radio is used to broadcast audio while TV is used to broadcast audio-visual information. We can hear news, songs, stories, cricket commentary, etc., on radio, while TV is used for watching movies, news, weather forecast, songs, cartoons etc.

ICT Skills Class 9 Notes

Session 3: ICT Tools: Smartphones and Tablets — II

Mobile Device Layout

Some of the basic controls you see on mobile device are as follows

Power button: This is used to start and shut down a mobile device.
Screen: A screen on which we perform functions by touching with our fingers.
Back button: We use the Back Button to go back to the previous screen in an application.
Microphone: This is present at the bottom of the mobile and we speak into the microphone when we talk to someone.
Menu button: This is used to show the options available in a particular app.
Home button: This brings you back to the Home Screen from wherever you are in your mobile.
Earpiece: This helps you to listen to voice calls.
Volume button: This helps you to increase or reduce the sound of your mobile

Basic Features of a Mobile Device

Bluetooth
Chargeable Battery
Wi-Fi
Touch Screen
Camera
Clock
Cellular network connectivity
Global Positioning System

Home screen of a mobile device

The home screen is the first (start) screen of a mobile device. There are three main parts of the
home screen.

1. The top part of the screen is called the Status bar. It shows icons of network signals, battery life, wi-fi etc.

2. The middle part of the screen consist of icons of applications. These icons can be placed on any icons.

3. The lower part of the screen is called dock. The icons of app in the dock can always be seen even if we move to another page.

Basic gestures used

Gestures are used to interact with the touchscreen of your mobile device. Some of these gestures are given below.

Tap
Tap and hold
Drag
Swipe
Double tap

ICT Skills Class 9 Notes

Session 4: Parts of a Computer and Peripherals

Parts of a computer

Computer is an electronic device which takes input, process and gives output. It consists of three main
units:

Input Unit:
Central Processing Unit (CPU)
Output Unit.

The CPU is further divided into three parts:

Control unit (CU): It coordinates between different parts to perform various operations
Arithmetic and logic unit (ALU): It performs all Mathematical and Logical Operations.
Memory unit (MU): It stores the data temporarily (RAM) as well as for a long time (ROM).

Difference between RAM and ROM

RAM	ROM
It stands for Random Access Memory.	It stands for Read Only Memory.
It stores the data temporarily	It stores the data permanently
It is volatile	It is non-volatile
Information is lost when computer is switched off	Information cannot be changed easily

ICT Skills Class 9 Notes

Motherboard

Motherboard, also referred to as a system board, is the main circuit board inside a computer. It connects input,
processing and output devices.

Storage devices

Storage devices are used to store digital information. The commonly used storage devices are USB flash drive,
hard disk, CD, DVD, etc

Units of Memory

Data is stored in the form of bits and bytes. Bit (Binary Digit, represented by 0 or 1) is the smallest storage unit.

Eight bits combined together form a byte.
1024 bytes make a kilobyte (KB).
1024 KB make 1 megabyte (MB)
1024 megabyte make 1 gigabyte (GB)
1024 gigabyte make 1 terabyte (TB)

Input devices:

An input device is used to enter information into the computer. for example Keyboard, Microphone etc.

Input Device	Functions
Keyboard	It is used to enter data.
Web Camera	It is used to record video.
Microphone	It is used to record sound.

ICT Skills Class 9 Notes

Output devices:

Output devices bring information from the computer to the user. for example Monitor, Printer, Speaker etc.

Output Device	Function
Monitor	It displays information to the user.
Printer	It gives hard copy of the information.
Speaker	It gives sound as output.

ICT Skills Class 9 Notes

NOTE: Input and output devices are also called ‘peripherals’. These are plugged into the computer using connection ports.

Common Peripheral Devices

Name	Type(Input/Output)	Function
Keyboard	Input Device	It is used to input data to the computer.
Mouse	Input Device	It is used to point and move the objects
Projector	Output Device	It is used to project images from computer on a screen.
Microphone	Input Device	It is used to record voice.
Speaker	Output Device	It plays back all the sound based output.
Monitor	Output Device	It displays all the visual output.
Printer	Output Device	It gives the hard copy of the document.
Scanner	Input Device	It convert the information on a paper document into a digital information document.
Barcode scanner.	Input Device	It is used for recording the items purchased in order to create the receipt/bill.

ICT Skills Class 9 Notes

Ports and connections

The slots into which we connect the mouse/keyboard/external hard disk wires are called ports. Thus, ports help us to connect input, output and storage devices in a computer system. for example

Universal serial bus or the USB port: It helps to connects peripheral devices, such as a mouse or a keyboard or a printer
Display port: These can be of different types, like Video Graphics Array (VGA) and High Definition Multimedia Interface (HDMI)
Audio port: It help to connect microphone, speakers, and headphones to a computer system.
Ethernet port: It is used for connecting the system to high speed Internet cable.
Power port: It is used for connecting the computer system to the power supply.

ICT Skills Class 9 Notes

Session 5: Basic Computer Operations

Hardware

The physical parts that we can see and touch are called the hardware. for example Keyboard, Mouse, Printer etc.

Software

It is a set of instructions which tells the computer how to perform a specific task. The most important software in any computer is the Operating System (OS). Most commonly used operating systems for computer are
Ubuntu, Microsoft Windows and Mac OS.

Some of the mobile operating systems are Apple iOS and Google Android.

Basic functions performed when a computer starts

A computer automatically runs a basic program called BIOS (Basic Input/Output System) as soon as it is switched on. The BIOS first does a self-test. If the self-test shows that the system is fine, the BIOS will load the Operating System.

Using the keyboard

A keyboard is an input device used to type text, numbers and commands into the computer. Various types of keys available on keyboard are listed below.

Function keys

Keys labelled from F1 to F12 are function keys. The function of the F1 key in most programs is to get help on that program.

Control keys

Keys, such as Control (CTRL), SHIFT, SPACEBAR, ALT, CAPS LOCK, and TAB, are special control keys.

Enter key

ENTER or the RETURN key is used to move the cursor to the beginning of a new line.

Punctuation keys

It includes keys for punctuation marks, such as colon (:), semicolon (;), question mark (?), single quotation
marks (‘ ’), and double quotation marks (“ ”).

Navigation keys

Keys, such as the arrow keys, HOME, END, PAGE UP, and PAGE DOWN are navigation keys. These are used
to move up and down, right and left in a document.

Command keys

Keys, such as INSERT (INS), DELETE (DEL), and BACKSPACE are command keys. The DELETE key remove the character from right side of the cursor while BACKSPACE key remove the character from left side of the cursor.

Windows keys

Pressing this key opens the Start menu.

Using the Mouse

A mouse is a small device that we can use to move, select, and open items on our computer screen. Actions performed by mouse are listed below

1. Roll over/hover : Moving a mouse over a file in File Explorer, it will show the details of that file.

2. Point and click: The mouse allows you to select an item on the screen. When you click a particular file, it gets selected.

3. Drag and drop: To move an item, you need to click it, and then holding the mouse button down, move the item to a new location. After you move the item to the new location, you release the mouse button. This is called drag and drop.

4. Double-click: It means to quickly click the left mouse button twice.

ICT Skills Class 9 Notes

Session 6: Performing Basic File Operations

Files and Folders

All information stored in a computer is kept in files. Each file is given a file name and has a file name extension that identifies the file type. For example, a document created using Notepad will have the extension .txt. An image file usually has an extension .jpg, while a sound file usually has .mp3

A folder is a location where a group of files can be stored.

Creating a file (using a text editor in Ubuntu)

To open a text editor, type ‘editor’ in the search dialog box.
Double-click the text editor icon.
A blank file open and type the text.
To save the file click Save.
In Save As dialog box, type the name of file and click Save as.

Keyboard shortcut of common Operations in Windows

Operations	Keyboard Shortcut
Undo	Ctrl + Z
Redo	Ctrl + R
Select all	Ctrl + A
Cut	Ctrl + X
Copy	Ctrl + C
Paste	Ctrl + V
Print	Ctrl + P
Save	Ctrl + S

ICT Skills Class 9 Notes

ICT Skills Class 9 Notes

Session 7: Communication and Networking — Basics of Internet

The Internet is a huge network of computers around the world. Using the Internet you can get any information. The information is stored in a big library/storehouse, called the World Wide Web (WWW) or the Web.

When our computer is connected to the Internet, then we say that our computer is online.

Uses of the Internet

Some of the most common uses are given below

Search information
Entertainment
E-mail and chatting
Social networking
Online Shopping
Online Ticket Booking
Online Learning
Online Banking

Requirement for connecting to the Internet

A device, such as a computer, laptop or mobile.
Modem
ISP (Internet Service Provider)

Types of connections

There are two types of connections

1. Wired Connection: When our computer is connected to the Internet using a wire (Ethernet Cable), it is called a wired connection.

2. Wireless connection: When our computer is connected to the Internet without wire(using wireless technology), it is called a wireless connection.

Bandwidth

Bandwidth is the amount of data that can be transmitted over a network in a certain amount of time. The bandwidth is usually expressed in bits per second (bps) or bytes per second. for example

1 Kbps (kilo bits per second) = 1000 bits per second
1 Mbps (mega bits per second) = 1000 kilo bits per second
1 Gbps (giga bits per second) = 1,000 mega bits per second

Internet Browser

An Internet Browser is a software program which helps us visit the various websites. Some examples of browsers are Google Chrome, Mozilla Firefox and Internet Explorer.

Search information using Internet Browser

Open an Internet browser.
Type the topic, on which you want information, in the search box.
Press Enter key from keyboard
The search results having the required information will be displayed

Session 8: Communication and Networking – Internet Browsing

World Wide Web

The World Wide Web (WWW) or simply the Web is a huge collection of information. It is a vast network of linked hypertext files, stored on computers throughout the world. It is made up of

A web page
A web browser
A system to transfer information between the web browser and the web pages.

Web Page

A web page is a document present on a computer that is connected to the Internet. Each web page has a unique address called URL(Uniform Resource Locator).

Hyperlinks

There are hyperlinks (highlighted and underlined words) present on web pages. If we click on hyperlink, it will take us to another part on the same page or to a different page.

Important parts of a web browser

Address bar (Alt+d)
Tabbed browsing (Ctrl+T)
Back and forward buttons (Alt+Left or right arrow keys)
Refresh button (F5)

ICT Skills Class 9 Notes

Session 9: Communication and Networking— Introduction to e-Mail

Electronic mail or e-mail is a quick way of sending messages to people using the Internet. Files containing videos, documents, spreadsheets, etc., can be sent along with the e-mail as attachments. E-mail is fast and easy to use and it can be sent to multiple people at the same time.

Postal mail vs. E-mail

Postal Mail	E-mail
Postal mail address is a geographical location.	E-mail address is a digital location on a mail computer
It is slow mode of communication	It is fast mode of communication
It is written with paper and pen	An e-mail is written on a computer or mobile device
Postal mail is sent by bus, air, train	E-mail travels in a digital format over an Internet connection

ICT Skills Class 9 Notes

E-mail ID or E-mail Address

An e-mail address is made up of two parts separated by the @ symbol. The part before the @ symbol is created by the user. for example, amankukreja_1, ananya123 etc.

The part after the ‘@’ symbol is the domain name of e-mail service provider, i.e., the company that provides the e-mail service. For example, Gmail by Google, Outlook.com by Microsoft and yahoo.co.in by Yahoo!

Advantages of E-mail

E-mails can be sent to multiple users along with the attachments.
They are fast as they reach anyone around the world immediately.
They are free as most services do not charge money.
It is environment friendly, as no paper is used.

ICT Skills Class 9 Notes

Session 10: Communication and Networking— Creating an e-Mail Account

There are a number of popular providers who help us to create an e-mail account.

(a) Gmail (run by Google)
(b) Outlook mail (run by Microsoft)
(c) Yahoo mail (run by Yahoo)

Steps to open an e-mail account on Gmail

Go to www.gmail.com and click “Create an account”
The sign up form will appear.
Fill your name, username, password.
Fill in other details as your phone number, country, etc and then click Next step
Google welcome page will appear. Click on the ‘Continue to Gmail’

ICT Skills Class 9 Notes

Session 11: Communication and Networking— Writing an e-Mail

Steps to write mail in G-mail

Sign-in to your G-mail account with your user id and password.
Click on the COMPOSE button.
A New Message window will open.
In the “To” section, type the e-mail ID of a person to whom you want to send an e-mail.
In the Cc section, write the e-mail-ids of all the people to whom you want to send copies of the message.
In the Subject, write the topic of the mail.
In the main body, type the message you want to send.
After typing your message, click Send.

NOTE: The mail will be sent to all the people whose e-mail addresses you have given in the To and Cc sections.

Attaching a file to an e-mail

The Attach button often has a paperclip as its symbol. Steps to add a file as an attachment are:

Click on the Attach button.
A new window open.
Locate and click on file which you want to attach and press OK.
The file will be attached and name of the file will be shown next to a paper clip symbol.

Managing Folders

There are many folders which help us to manage and organize our e-mails.

Inbox: This folder holds e-mails that people have sent to us.
Sent: This folder holds e-mails that you have sent to people.
Draft: The Drafts folder holds all the e-mail you have started writing, but not yet sent.
Trash: It holds e-mails that you no longer need and have deleted.
Junk/Spam: This folder holds e-mails that may not be useful.

ICT Skills Class 9 Notes

Session 12: Communication and Networking — Receiving and Replying to e-mails

Receiving an e-mail

When someone sends an e-mail then the e-mail will appear in our Inbox. It shows the name of the sender, subject and a title of the main message. It will remain bold till you open it.

After reading mail, we can reply, forward or delete the mail. If the invitation was sent to many people, you get another option, i.e., Reply to All

Replying an e-mail

After reading mail, we can reply the e-mail by following the steps given below:

Click on the Reply option at the bottom.
Type your reply in the space provided.
Click on Send.

Forwarding an e-mail

Steps to forward an e-mail are given below.

Open an e-mail.
Click on “Forward” option.
Type the e-mail address to whom you want to forward.
Write anything extra text/message if required.
Click on Send.

Deleting an e-mail

We can delete the mail by clicking on the delete icon. This will remove the e-mail from your inbox and move it to the “Trash” folder.

Disclaimer : I tried to give you the correct and simple notes of ICT Skills Class 9 Notes , but if you feel that there is/are mistakes in the notes of ICT Skills Class 9 Notes given above, you can directly contact me at csiplearninghub@gmail.com. NCERT Book and Study material available on CBSE official website are used as a reference to create above ICT Skills Class 9 Notes. All the screenshots of images are taken from CBSE Study material.