NCERT Textbook: Introduction to ICT | Information Technology for Class 9 PDF Download

 Page 1


Muskan performed an experiment to find out the weight 
of a solid metallic ball in different media like air, water 
and mustard oil using spring balance. The weight of 
the ball in every medium was noted by Muskan in her 
notebook. The weight was found to be least in water and 
comparatively higher in air than in mustard oil. Muskan 
recorded the entire experiment as a video, explaining 
about the variation of weight in various medium.
Muskan shared this video with her classmates using 
a Messenger App. One of her friends suggested her to 
create a blog to share her experiences. Muskan created 
a blog and regularly shared her learning experiences 
and reflections on this blog. She also uses web tools 
and technology that made her learning experience very 
engaging. Muskan is excited about the potential of 
technology use for learning.
This is only an example to describe how Information and 
Communication Technology (ICT) has started influencing 
the learning experiences. With the world becoming more 
and more digital with time, schools are also progressing in 
their use of ICT. In this chapter you will be introduced to 
the basic ideas of ICT and its uses in the learning process. 
What is i Ct ?
ICT is the short form of three basic terms — Information, 
Communication and Technology. The representation 
Introduction to
ICT
Chapter
1
2024-25
Page 2


Muskan performed an experiment to find out the weight 
of a solid metallic ball in different media like air, water 
and mustard oil using spring balance. The weight of 
the ball in every medium was noted by Muskan in her 
notebook. The weight was found to be least in water and 
comparatively higher in air than in mustard oil. Muskan 
recorded the entire experiment as a video, explaining 
about the variation of weight in various medium.
Muskan shared this video with her classmates using 
a Messenger App. One of her friends suggested her to 
create a blog to share her experiences. Muskan created 
a blog and regularly shared her learning experiences 
and reflections on this blog. She also uses web tools 
and technology that made her learning experience very 
engaging. Muskan is excited about the potential of 
technology use for learning.
This is only an example to describe how Information and 
Communication Technology (ICT) has started influencing 
the learning experiences. With the world becoming more 
and more digital with time, schools are also progressing in 
their use of ICT. In this chapter you will be introduced to 
the basic ideas of ICT and its uses in the learning process. 
What is i Ct ?
ICT is the short form of three basic terms — Information, 
Communication and Technology. The representation 
Introduction to
ICT
Chapter
1
2024-25
ICT Tex Tbook — Class Ix 2
of data in a meaningful way is called Information. 
For example, Muskan is a student of Class IX of the 
Government School, Tajpur. She is 14 years old and 
is a Table Tennis player. Her hobbies include singing,  
drawing, reading, dancing, gardening, etc. This is the 
description about Muskan available in her profile at 
school. Based on this information, Muskan's teacher 
selected her to participate in an inter-school poster 
making competition-on “Dance forms of India”. 
Thus information (meaningful data) can help in 
decision-making also.
The term communication may be referred as 
imparting or exchanging of information by  speaking, 
writing, or using some other medium. In other words, 
it may be referred as conveying your feelings, thoughts 
and emotions in any verbal and non-verbal medium. 
Any communication has four essential elements, 
namely ‘sender’, ‘message’, ‘medium’ and ‘receiver’. 
When all four elements are in sync with each other in 
terms of sequence, relevance, appropriateness, etc., 
then communication becomes effective. Analyse the 
elements of communication followed when Muskan 
shared the video of experiment she recorded.
Activity 1 
Identify the information communicated through 
Figure 1.1.
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
2024-25
Page 3


Muskan performed an experiment to find out the weight 
of a solid metallic ball in different media like air, water 
and mustard oil using spring balance. The weight of 
the ball in every medium was noted by Muskan in her 
notebook. The weight was found to be least in water and 
comparatively higher in air than in mustard oil. Muskan 
recorded the entire experiment as a video, explaining 
about the variation of weight in various medium.
Muskan shared this video with her classmates using 
a Messenger App. One of her friends suggested her to 
create a blog to share her experiences. Muskan created 
a blog and regularly shared her learning experiences 
and reflections on this blog. She also uses web tools 
and technology that made her learning experience very 
engaging. Muskan is excited about the potential of 
technology use for learning.
This is only an example to describe how Information and 
Communication Technology (ICT) has started influencing 
the learning experiences. With the world becoming more 
and more digital with time, schools are also progressing in 
their use of ICT. In this chapter you will be introduced to 
the basic ideas of ICT and its uses in the learning process. 
What is i Ct ?
ICT is the short form of three basic terms — Information, 
Communication and Technology. The representation 
Introduction to
ICT
Chapter
1
2024-25
ICT Tex Tbook — Class Ix 2
of data in a meaningful way is called Information. 
For example, Muskan is a student of Class IX of the 
Government School, Tajpur. She is 14 years old and 
is a Table Tennis player. Her hobbies include singing,  
drawing, reading, dancing, gardening, etc. This is the 
description about Muskan available in her profile at 
school. Based on this information, Muskan's teacher 
selected her to participate in an inter-school poster 
making competition-on “Dance forms of India”. 
Thus information (meaningful data) can help in 
decision-making also.
The term communication may be referred as 
imparting or exchanging of information by  speaking, 
writing, or using some other medium. In other words, 
it may be referred as conveying your feelings, thoughts 
and emotions in any verbal and non-verbal medium. 
Any communication has four essential elements, 
namely ‘sender’, ‘message’, ‘medium’ and ‘receiver’. 
When all four elements are in sync with each other in 
terms of sequence, relevance, appropriateness, etc., 
then communication becomes effective. Analyse the 
elements of communication followed when Muskan 
shared the video of experiment she recorded.
Activity 1 
Identify the information communicated through 
Figure 1.1.
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
2024-25
Introduct Ion to Ict 3
Figure 1.1: Coast Scene
Source: https://goo.gl/ZsTCaq
Technology refers to methods, systems and devices, 
which are a result of scientific knowledge, being used 
for practical purposes. For example, Muskan went to 
an excursion to Bhubaneswar and visited the State 
Museum. She saw various mineral ores in the mineral 
section of the museum. She decided to capture 
photographs to share with others who may not have 
seen the ores. She borrowed her teacher’s mobile and 
clicked pictures of the rare collection. She shared all the 
pictures on her blog along with a description of the ores. 
Many viewers commented and appreciated Muskan for 
sharing those pictures and description.
Technology can be used for creation and 
communication of information. The term Information 
and Communication Technology (ICT) includes various 
forms of technologies that are used to create, display, 
store, process, transmit, share or exchange information 
by electronic means (UNESCO 2007). Such a discipline 
which deals in the creation and communication of 
information is called ICT (see Fig.1.2).
Radio, television, and print media (Newspaper, 
Books, Magazines, etc.) are the popular technologies 
used for communication. The digital revolution has 
transformed the way these traditional technologies 
function. For example, analog television has become 
2024-25
Page 4


Muskan performed an experiment to find out the weight 
of a solid metallic ball in different media like air, water 
and mustard oil using spring balance. The weight of 
the ball in every medium was noted by Muskan in her 
notebook. The weight was found to be least in water and 
comparatively higher in air than in mustard oil. Muskan 
recorded the entire experiment as a video, explaining 
about the variation of weight in various medium.
Muskan shared this video with her classmates using 
a Messenger App. One of her friends suggested her to 
create a blog to share her experiences. Muskan created 
a blog and regularly shared her learning experiences 
and reflections on this blog. She also uses web tools 
and technology that made her learning experience very 
engaging. Muskan is excited about the potential of 
technology use for learning.
This is only an example to describe how Information and 
Communication Technology (ICT) has started influencing 
the learning experiences. With the world becoming more 
and more digital with time, schools are also progressing in 
their use of ICT. In this chapter you will be introduced to 
the basic ideas of ICT and its uses in the learning process. 
What is i Ct ?
ICT is the short form of three basic terms — Information, 
Communication and Technology. The representation 
Introduction to
ICT
Chapter
1
2024-25
ICT Tex Tbook — Class Ix 2
of data in a meaningful way is called Information. 
For example, Muskan is a student of Class IX of the 
Government School, Tajpur. She is 14 years old and 
is a Table Tennis player. Her hobbies include singing,  
drawing, reading, dancing, gardening, etc. This is the 
description about Muskan available in her profile at 
school. Based on this information, Muskan's teacher 
selected her to participate in an inter-school poster 
making competition-on “Dance forms of India”. 
Thus information (meaningful data) can help in 
decision-making also.
The term communication may be referred as 
imparting or exchanging of information by  speaking, 
writing, or using some other medium. In other words, 
it may be referred as conveying your feelings, thoughts 
and emotions in any verbal and non-verbal medium. 
Any communication has four essential elements, 
namely ‘sender’, ‘message’, ‘medium’ and ‘receiver’. 
When all four elements are in sync with each other in 
terms of sequence, relevance, appropriateness, etc., 
then communication becomes effective. Analyse the 
elements of communication followed when Muskan 
shared the video of experiment she recorded.
Activity 1 
Identify the information communicated through 
Figure 1.1.
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
2024-25
Introduct Ion to Ict 3
Figure 1.1: Coast Scene
Source: https://goo.gl/ZsTCaq
Technology refers to methods, systems and devices, 
which are a result of scientific knowledge, being used 
for practical purposes. For example, Muskan went to 
an excursion to Bhubaneswar and visited the State 
Museum. She saw various mineral ores in the mineral 
section of the museum. She decided to capture 
photographs to share with others who may not have 
seen the ores. She borrowed her teacher’s mobile and 
clicked pictures of the rare collection. She shared all the 
pictures on her blog along with a description of the ores. 
Many viewers commented and appreciated Muskan for 
sharing those pictures and description.
Technology can be used for creation and 
communication of information. The term Information 
and Communication Technology (ICT) includes various 
forms of technologies that are used to create, display, 
store, process, transmit, share or exchange information 
by electronic means (UNESCO 2007). Such a discipline 
which deals in the creation and communication of 
information is called ICT (see Fig.1.2).
Radio, television, and print media (Newspaper, 
Books, Magazines, etc.) are the popular technologies 
used for communication. The digital revolution has 
transformed the way these traditional technologies 
function. For example, analog television has become 
2024-25
ICT Tex Tbook — Class Ix 4
digital television. In addition to printed newspapers 
now we also have their electronic versions. Along with 
traditional radio, we also have online radio.
Evolution of ICT
We cannot live in isolation. We need to interact and 
communicate with each other and with our surroundings. 
In the ancient times people used smoke signals, 
drum sounds, pigeons and messengers as modes of 
communication. These were relatively slow, unreliable 
and sometimes unsafe means of communication.
With the advent of new technologies, the modes and 
methods of communication are changing very fast. Radio, 
television, computers, telephones, smartphones, digital 
camera, laptop and interactive board have revolutionised 
the ways of communication. These are very fast and can 
link distant locations within no time.
We can easily send messages across the globe and 
learn about events all over the world in a blink of eye. 
Numerous technological tools have come up which help us 
not only to communicate but to create, store and manage 
information. The diverse set of technological tools and 
resources used to store, manage, manipulate, create and 
communicate digital information come under information 
and communication technologies (ICTs). 
Figure 1.2: ICT Around Us
Source: https://goo.gl/vytpr7
2024-25
Page 5


Muskan performed an experiment to find out the weight 
of a solid metallic ball in different media like air, water 
and mustard oil using spring balance. The weight of 
the ball in every medium was noted by Muskan in her 
notebook. The weight was found to be least in water and 
comparatively higher in air than in mustard oil. Muskan 
recorded the entire experiment as a video, explaining 
about the variation of weight in various medium.
Muskan shared this video with her classmates using 
a Messenger App. One of her friends suggested her to 
create a blog to share her experiences. Muskan created 
a blog and regularly shared her learning experiences 
and reflections on this blog. She also uses web tools 
and technology that made her learning experience very 
engaging. Muskan is excited about the potential of 
technology use for learning.
This is only an example to describe how Information and 
Communication Technology (ICT) has started influencing 
the learning experiences. With the world becoming more 
and more digital with time, schools are also progressing in 
their use of ICT. In this chapter you will be introduced to 
the basic ideas of ICT and its uses in the learning process. 
What is i Ct ?
ICT is the short form of three basic terms — Information, 
Communication and Technology. The representation 
Introduction to
ICT
Chapter
1
2024-25
ICT Tex Tbook — Class Ix 2
of data in a meaningful way is called Information. 
For example, Muskan is a student of Class IX of the 
Government School, Tajpur. She is 14 years old and 
is a Table Tennis player. Her hobbies include singing,  
drawing, reading, dancing, gardening, etc. This is the 
description about Muskan available in her profile at 
school. Based on this information, Muskan's teacher 
selected her to participate in an inter-school poster 
making competition-on “Dance forms of India”. 
Thus information (meaningful data) can help in 
decision-making also.
The term communication may be referred as 
imparting or exchanging of information by  speaking, 
writing, or using some other medium. In other words, 
it may be referred as conveying your feelings, thoughts 
and emotions in any verbal and non-verbal medium. 
Any communication has four essential elements, 
namely ‘sender’, ‘message’, ‘medium’ and ‘receiver’. 
When all four elements are in sync with each other in 
terms of sequence, relevance, appropriateness, etc., 
then communication becomes effective. Analyse the 
elements of communication followed when Muskan 
shared the video of experiment she recorded.
Activity 1 
Identify the information communicated through 
Figure 1.1.
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
___________________________________________________
2024-25
Introduct Ion to Ict 3
Figure 1.1: Coast Scene
Source: https://goo.gl/ZsTCaq
Technology refers to methods, systems and devices, 
which are a result of scientific knowledge, being used 
for practical purposes. For example, Muskan went to 
an excursion to Bhubaneswar and visited the State 
Museum. She saw various mineral ores in the mineral 
section of the museum. She decided to capture 
photographs to share with others who may not have 
seen the ores. She borrowed her teacher’s mobile and 
clicked pictures of the rare collection. She shared all the 
pictures on her blog along with a description of the ores. 
Many viewers commented and appreciated Muskan for 
sharing those pictures and description.
Technology can be used for creation and 
communication of information. The term Information 
and Communication Technology (ICT) includes various 
forms of technologies that are used to create, display, 
store, process, transmit, share or exchange information 
by electronic means (UNESCO 2007). Such a discipline 
which deals in the creation and communication of 
information is called ICT (see Fig.1.2).
Radio, television, and print media (Newspaper, 
Books, Magazines, etc.) are the popular technologies 
used for communication. The digital revolution has 
transformed the way these traditional technologies 
function. For example, analog television has become 
2024-25
ICT Tex Tbook — Class Ix 4
digital television. In addition to printed newspapers 
now we also have their electronic versions. Along with 
traditional radio, we also have online radio.
Evolution of ICT
We cannot live in isolation. We need to interact and 
communicate with each other and with our surroundings. 
In the ancient times people used smoke signals, 
drum sounds, pigeons and messengers as modes of 
communication. These were relatively slow, unreliable 
and sometimes unsafe means of communication.
With the advent of new technologies, the modes and 
methods of communication are changing very fast. Radio, 
television, computers, telephones, smartphones, digital 
camera, laptop and interactive board have revolutionised 
the ways of communication. These are very fast and can 
link distant locations within no time.
We can easily send messages across the globe and 
learn about events all over the world in a blink of eye. 
Numerous technological tools have come up which help us 
not only to communicate but to create, store and manage 
information. The diverse set of technological tools and 
resources used to store, manage, manipulate, create and 
communicate digital information come under information 
and communication technologies (ICTs). 
Figure 1.2: ICT Around Us
Source: https://goo.gl/vytpr7
2024-25
Introduct Ion to Ict 5
Why i Ct ?
ICT facilitates communication anywhere, anytime 
and by anyone. It has become easier to communicate 
worldwide through the use of ICTs, for example, social 
media sites and apps, blogs, wikispace, etc. The use of 
ICT is time saving and cost effective in various ways.
ICT has revolutionised the world. There was a 
generation that did not have telephone; there was a 
time when radio and television were considered as 
the most advanced sources of information. However 
now the new generation lives in the world of Internet, 
wireless, augmented and virtual space. The world 
around has drastically changed. The dramatic change 
due to ICT has resulted in innovation in every field. 
These innovations have reduced the size of the 
technological tools and increased the speed with 
which they operate to process data and communicate 
information. 
All these advancements and innovations give scope 
for betterment and effectiveness.
Muskan has a cousin Nishi who lives in Bengaluru and 
who is also of her age. She has same hobbies like her, 
such as dancing and gardening. Both of them are very 
fond of each other. They like to talk very often, they 
discuss about new things they do in gardening for hours 
together over phone. But making phone calls frequently 
was very costly and unaffordable for them.
     Hence they always had to restrict their discussions 
on gardening. A friend of Muskan informed her about 
online video calling facility like Skype, Google Meet, etc., 
which  is more cost effective than making, phone calls. 
Muskan installed Skype on her laptop and her cousin 
also installed it on her Smartphone. They are now able to 
discuss on several topics without any restriction.
•	 Access	 to	 instant 	 data: Access to instant data 
supports in predictions, decision making and also 
knowledge acquisition.
2024-25