GeographyCBSE Class 12 · Transport and Communication

Satellite Communication and Cyber Space: the Internet (Class 12 Geography, Chapter 7)

Updated 16 October 2026 · Fact-checked

Satellite communication, developed since the 1970s, makes the cost and time of communication the same whatever the distance. Cyber space is the electronic digital world of computer networks, the Internet, where people communicate without moving. Internet users rose from under 50 million in 1995 to about 5.4 billion in 2023.

Understand Satellite Communication and Cyber Space

Why this topic matters. Statement-type MCQs on how the Internet arose, and short answers on satellites and cyber space, close the world transport chapter; the same ideas return in the India chapter on communication networks.

1. From telegraph to optic fibre.

The telegraph and the telephone were the important early methods of long-distance communication.
The telegraph helped the colonisation of the American West; the telephone was a critical factor in the urbanisation of America, letting firms keep headquarters in cities and branch offices in small towns.
The telephone is still the most commonly used mode; in developing countries cell phones, made possible by satellites, matter for rural connectivity.
The first major breakthrough was optic fibre cables (OFC): they carry large quantities of data rapidly, securely and virtually error-free, so telephone companies replaced copper cables.
With digitisation of information in the 1990s, telecommunication merged with computers to form integrated networks: the Internet.

2. Satellite communication.

Every cell-phone call, SMS or cable-TV programme uses satellites.
Emerged since the 1970s, after the U.S.A. and the former U.S.S.R. pioneered space research.
Artificial satellites in Earth's orbit connect even remote corners of the globe.
Key idea: satellites make the unit cost and time of communication invariant with distance: it costs the same to communicate over 500 km as over 5,000 km.
India's early satellites: Aryabhatt (19 April 1975), Bhaskar-I (1979), Rohini (1980), APPLE (Arian Passenger Payload Experiment, 19 June 1981, on an Arian rocket). Bhaskar, Challenger and INSAT I-B made long-distance communication, television and radio effective; TV weather forecasting is a boon.

3. Cyber space: the Internet.

Cyber space is the world of electronic computerised space, encompassed by the Internet such as the World Wide Web (www): communicating or accessing information over computer networks without physical movement of sender and receiver.
It exists everywhere: an office, a sailing boat, a flying plane.
Growth of users: fewer than 50 million (1995), about 400 million (2000), over two billion (2010), about 5.4 billion (2023).
Shift to developing countries: the U.S.A.'s share fell from 66 per cent (1995) to 25 per cent (2005). Most users are now in the U.S.A., U.K., Germany, Japan, China and India.
Cyber space expands human economic and social space through e-mail, e-commerce, e-learning and e-governance.
NCERT concludes that modern communication, more than transport, has made the global village a reality.

4. Reading the growth figures. From 400 million (2000) to 5.4 billion (2023) is a rise of 13.5 times; from under 50 million (1995) it is more than 108 times (5,400 / 50 = 108, and the 1995 figure was below 50 million). Quote years with every figure.

Diagram checklist. Draw a timeline: telegraph → telephone → optic fibre (data fast, secure) → digitisation (1990s) → Internet; add satellites (1970s onward) as a branch, and India's launches 1975-1981 on it.

Key quotations

Short lines worth knowing by heart: who says them, when, and why they matter.

Cyberspace exists everywhere.
NCERT, Chapter 7: Opening of the cyber space section.
Cyber space is not tied to a place: an office, a boat or a plane can all be inside it.

Satellite Communication and Cyber Space: key facts

Communication timeline: Telegraph
Telephone
Optic fibre cables
Digitisation in the 1990s
Internet; Telecom + computers = integrated networks (Internet).
Satellite communication: Since the 1970s (U.S.A., former U.S.S.R.)
Cost and time same for 500 km or 5,000 km
Cell phones, SMS, cable TV, weather forecasts; Distance stops mattering.
India's early satellites: Aryabhatt 19 April 1975
Bhaskar-I 1979
Rohini 1980
APPLE 19 June 1981 (Arian rocket)
INSAT I-B; APPLE = Arian Passenger Payload Experiment.
Internet users: $1995 : u n d er 50 mi l l i o n ∣2000 : ab o u t 400 mi l l i o n ∣2010 : o v er 2 bi l l i o n ∣2023 : ab o u t 5.4 bi l l i o n ∣ U . S . A . s ha r e : 66$; Always give the year with the figure.

Aryabhatt	19 April 1975
Bhaskar-I	1979
Rohini	1980
APPLE	19 June 1981 (Arian rocket)
	INSAT I-B

How to answer Satellite Communication and Cyber Space questions

Expect statement or assertion-reason MCQs on optic fibre, digitisation and the Internet, 1-mark items on satellites, and 3-mark answers on cyber space or the global village.

1Define cyber space in one line: electronic digital world of computer networks, no physical movement of sender or receiver.
2For satellites, state the invariance idea with NCERT's 500 km / 5,000 km example.
3For the Internet's rise, give the sequence: optic fibre, digitisation in the 1990s, integration with computers.
4For growth, quote two or three dated figures and the shift to developing countries.
5End a 'global village' answer with NCERT's point that communication more than transport created it.

Satellite Communication and Cyber Space in real life

The idea, met in an everyday situation. Answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

Why optic fibre

Suppose a bank must send thousands of transactions every second between its offices in different cities, without errors and without the data leaking.

Which cable technology suits this job, and why?

Try it first, then show the solutionSolution

Optic fibre cables were the first major breakthrough in modern telecommunication.
They transmit large quantities of data rapidly, securely and virtually error-free.

Answer: Optic fibre cables, because they carry large volumes of data quickly and securely with almost no errors; this is why telephone companies upgraded their copper cables to include them.

Memory hook: OFC: Only Fast, Clean data.

E-governance in cyber space

Suppose a farmer downloads a land record, pays a bill online and takes a short course on a phone, all without travelling to town.

Which of NCERT's four ways of expanding human space are at work?

Try it first, then show the solutionSolution

Land record: e-governance. Bill payment: e-commerce. Course: e-learning.
Messages to officials would be e-mail.

Answer: E-governance, e-commerce and e-learning (with e-mail as the fourth); cyber space lets the farmer act without physical movement.

Memory hook: Four e's: mail, commerce, learning, governance.

Tricks to remember Satellite Communication and Cyber Space

Short memory aids. Say each one aloud once, then use it on a question the same day.

'A Big Red Apple' for 1975-81
Aryabhatt (1975), Bhaskar-I (1979), Rohini (1980), APPLE (1981), in order.
Use it when: India's early satellites.
50-400-2-5.4
Million, million, billion, billion for 1995, 2000, 2010, 2023.
Use it when: Internet user growth.
66 to 25
U.S.A.'s share of users fell from two-thirds to a quarter, 1995 to 2005.
Use it when: Shift to developing countries.
OFC: Only Fast, Clean data
Optic fibre: rapid, secure, virtually error-free.
Use it when: Advantages of optic fibre cables.

Satellite Communication and Cyber Space: solved examples

Ordered from board level to HOTS. Try each one before you open the solution.

Example 1: Satellite fact · 1 mark · MCQBoard level

Which feature of satellite communication does NCERT highlight with the example of 500 km and 5,000 km?
(A) Satellites work only over short distances.
(B) The unit cost and time of communication do not change with distance.
(C) Long-distance calls cost ten times more.
(D) Satellites replaced optic fibre cables.

Try it first, then show the solutionSolution

Satellites make cost and time invariant with distance: 500 km costs the same as 5,000 km (1 mark).

Answer: (B) The unit cost and time of communication do not change with distance.

Example 2: Assertion and reason on optic fibre · 1 mark · Assertion-reasonHarder board level

Assertion (A): Telephone companies across the world upgraded their copper cable systems to include optic fibre cables.
Reason (R): Optic fibre cables carry large quantities of data rapidly, securely and almost without error.
(A) Both (A) and (R) are true and (R) is the correct explanation of (A).
(B) Both (A) and (R) are true but (R) is not the correct explanation of (A).
(C) (A) is true but (R) is false.
(D) (A) is false but (R) is true.

Try it first, then show the solutionSolution

Companies facing competition switched because of these advantages of OFC, so R explains A (1 mark).

Answer: (A) Both (A) and (R) are true and (R) is the correct explanation of (A).

Example 3: Reading growth figures · 3 marks · Source-basedBoard level

Internet users were about 400 million in 2000 and about 5.4 billion in 2023.
(i) By how many times did users increase? (1)
(ii) What change took place in the U.S.A.'s share of users between 1995 and 2005? (1)
(iii) Name two developing countries among the countries with most users. (1)

Try it first, then show the solutionSolution

(i) 5,400 million / 400 million = 13.5 times (1 mark).
(ii) It fell from 66 per cent to 25 per cent (1 mark).
(iii) China and India (1 mark).

Answer: (i) About 13.5 times (5,400 / 400). (ii) The U.S.A.'s share fell from 66 per cent in 1995 to 25 per cent in 2005, a shift towards developing countries. (iii) China and India.

Example 4: Correcting a wrong sequence · 3 marks · Short answerHarder board level

A student writes: 'The Internet came first, and optic fibre cables were laid later to carry it.' Correct the statement using NCERT's sequence, and explain why telephone companies adopted optic fibre. (3 marks)

Try it first, then show the solutionSolution

Correct order: telegraph and telephone, then optic fibre cables as the first major breakthrough, then digitisation in the 1990s, which merged telecommunication with computers into the Internet (1 mark).
Companies facing mounting competition upgraded copper cable systems to include optic fibre (1 mark).
Optic fibre carries large quantities of data rapidly, securely and virtually error-free, which made integrated networks possible (1 mark).

Answer: The statement reverses the order. Optic fibre cables came first: they were the first major breakthrough after the telegraph and telephone, and telephone companies, faced with mounting competition, upgraded their copper cable systems to include them because optic fibre transmits large quantities of data rapidly, securely and virtually error-free. Only after the digitisation of information in the 1990s did telecommunication merge with computers to form the integrated networks termed the Internet.

Example 5: One evening, three satellite services · 3 marks · Short answerHarder board level

On the same evening a coastal village receives a cyclone warning on television, an SMS from a relative abroad and a cable-TV programme. Explain how satellite communication makes all three possible, and why the cost does not depend on how far the message travels. (3 marks)

Try it first, then show the solutionSolution

Artificial satellites in the Earth's orbit connect even remote corners of the globe; every cell-phone call, SMS or cable-TV programme uses satellite communication (1 mark).
Indian satellites such as Bhaskar, Challenger and INSAT I-B made long-distance communication, television and radio effective; weather forecasting through television is a boon (1 mark).
Satellites make the unit cost and time of communication invariant with distance: 500 km costs the same as 5,000 km (1 mark).

Answer: Artificial satellites in the Earth's orbit connect even remote places, and every SMS, cell-phone call or cable-TV programme uses satellite communication. In India, satellites such as Bhaskar, Challenger and INSAT I-B have made long-distance communication, television and radio very effective, and weather forecasting through television, as with the cyclone warning, is a boon. The cost does not depend on distance because satellites make the unit cost and time of communication invariant with distance: it costs the same to communicate over 500 km as over 5,000 km.

Example 6: HOTS: global village · 5 marks · Long answerHOTS / competency

"Modern communication, more than transport, has made the global village a reality." Evaluate the statement. (5 marks)

Try it first, then show the solutionSolution

Meaning of global village: the world behaves like one connected community (1 mark).
Satellites: cost and time invariant with distance; remote areas linked (1 mark).
Cyber space: communication without physical movement; exists everywhere; users grew to about 5.4 billion by 2023 (1 mark).
Uses: e-mail, e-commerce, e-learning, e-governance; shift of users to developing countries (1 mark).
Evaluation: transport still moves goods and people, but instant, distance-free contact is what made the village (1 mark).

Answer: A 'global village' means people across the world interact as easily as neighbours in a village.

Satellites made this possible by making the cost and time of communication the same whatever the distance; even remote corners are linked, and everyday calls, SMS and television rely on them. Optic fibre and digitisation then merged telecommunication with computers into the Internet.

Cyber space lets people communicate and access information without physical movement, from an office, a boat or a plane. Users rose from fewer than 50 million in 1995 to about 5.4 billion in 2023, and the share of developing countries grew as the U.S.A.'s fell from 66 to 25 per cent between 1995 and 2005. E-mail, e-commerce, e-learning and e-governance expand people's economic and social space.

Transport still carries goods and people and shrinks travel time, but it cannot make distance irrelevant. Communication does, which is why NCERT credits it, more than transport, with creating the global village. The statement is justified, though gaps in access mean the village is not yet complete.

Where students lose marks in Satellite Communication and Cyber Space

The slips examiners see most often, and what to write instead.

Mistake: Figures without years
Students memorise numbers only.
Wrong working
There are 5.4 billion Internet users and the U.S.A. has 25 per cent.
Right working
About 5.4 billion users (2023); the U.S.A.'s share fell to 25 per cent by 2005.
Do this: Number + year every time.
Usually costs: Up to 1 mark.
Mistake: Defining cyber space as 'computers'
Vague definition.
Wrong working
Cyber space means using a computer.
Right working
The electronic digital world of computer networks for communicating or accessing information without physical movement of sender and receiver.
Do this: Include 'without physical movement'.
Usually costs: 1 mark.
Mistake: Wrong order of India's satellites
Names learnt without dates.
Wrong working
Rohini was India's first satellite (1975).
Right working
Aryabhatt (19 April 1975) came first, then Bhaskar-I (1979), Rohini (1980), APPLE (1981).
Do this: A Big Red Apple.
Usually costs: 1 mark.
Mistake: Saying optic fibre came after the Internet
Sequence confused.
Wrong working
After the Internet, optic fibre was introduced.
Right working
Optic fibre was the first major breakthrough; digitisation in the 1990s then created the Internet.
Do this: Fibre first, then digitisation, then Internet.
Usually costs: 1 mark in statement MCQs.

Exam tips

Asked in: 2023 board paper 64/1/1 Q8 (1 mark, two statements on digitisation and the Internet); 2025 board paper 64/5/3 Q21 (3 marks, unprecedented spread of the Internet); 2024 board paper 64/4/1 Q26 (5 marks, importance of satellite communication). Satellite items in the 2024-25 sample paper Q13 and 2026-27 sample paper Q16 are on India's satellite systems (India: People and Economy chapter). The answers on this page are our own.
In statement MCQs, check whether Statement II follows from Statement I: digitisation led to the Internet.
Quote NCERT's 500 km / 5,000 km example when explaining satellite communication.
For a 5-mark answer, combine satellites, optic fibre and cyber space with dated growth figures.

Practice questions on Satellite Communication and Cyber Space

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

Q1 · 1 mark · MCQBoard level
In which decade did satellite communication emerge as a new area of communication technology?
(A) 1950s
(B) 1970s
(C) 1990s
(D) 2000s
Hint
After U.S.A. and U.S.S.R. pioneered space research.
Answer
(B) 1970s.
Q2 · 1 mark · Very short answerBoard level
What does APPLE stand for, and when was it launched? (1 mark)
Hint
A rocket name is in it.
Answer
Arian Passenger Payload Experiment; launched on 19 June 1981.
Q3 · 1 mark · Very short answerHarder board level
Which mode of communication helped the colonisation of the American West? (1 mark)
Hint
Older than the telephone.
Answer
The telegraph.
Q4 · 2 marks · Very short answerHarder board level
Define cyber space. (2 marks)
Hint
No movement of sender or receiver.
Answer
Cyber space is the world of electronic computerised space, encompassed by the Internet such as the World Wide Web, in which people communicate or access information over computer networks without the physical movement of sender and receiver.
Q5 · 3 marks · Short answerHOTS / competency
Suppose a village has no road to the district town but has mobile coverage. How can communication technology reduce its isolation? Use NCERT points. (3 marks)
Hint
Cell phones, satellites, e-services.
Answer
Cell phones made possible by satellites are important for rural connectivity in developing countries. Since satellites make communication cost the same over any distance, villagers can call, send SMS and watch television including weather forecasts. Through the Internet they can use e-governance, e-learning and e-commerce without travelling, so the lack of a road matters less for information and services.
Q6 · 3 marks · Short answerHarder board level
How did the telephone help the urbanisation of America? (3 marks)
Hint
Headquarters and branches.
Answer
The telephone became a critical factor in American urbanisation. Firms could centralise their functioning at city headquarters and keep branch offices in smaller towns, staying in constant contact by phone. This concentrated management jobs and services in cities. AT&T held a monopoly over the U.S. telephone industry in the early and mid-twentieth century.
Q7 · 5 marks · Long answerHOTS / competency
Evaluate how far satellites, optic fibre and cyber space have benefited developing countries such as India, using NCERT facts. (5 marks)
Hint
Satellites, rural phones, user shift, e-services, limits.
Answer
Satellites: India launched Aryabhatt (1975), Bhaskar-I (1979), Rohini (1980) and APPLE (1981), and satellites such as Bhaskar, Challenger and INSAT I-B made long-distance communication, television and radio very effective; weather forecasting on television is a boon. Phones: in developing countries cell phones, made possible by satellites, are important for rural connectivity, and satellites make communication cost the same over any distance. Optic fibre and digitisation created the Internet, and users have shifted towards developing countries: the U.S.A.'s share fell from 66 per cent (1995) to 25 per cent (2005), and China and India are now among the countries with most users. Cyber space widens economic and social space through e-mail, e-commerce, e-learning and e-governance. The benefit is large but partial: people without networks or devices cannot use these services, so access decides how far the gains reach.

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1.When was Aryabhatt launched?Show answer
19 April 1975.
2.What was the first major breakthrough in modern telecommunication?Show answer
Optic fibre cables (OFC).
3.By which year had Internet users passed two billion, according to NCERT?Show answer
2010 (over two billion).
4.Which two countries pioneered space research?Show answer
The U.S.A. and the former U.S.S.R.
5.Where can cyberspace exist, according to NCERT?Show answer
Everywhere: in an office, a sailing boat, a flying plane and virtually anywhere.

Satellite Communication and Cyber Space: frequently asked questions

Is cyberspace the same as the Internet?

NCERT describes cyberspace as the world of electronic computerised space encompassed by the Internet, such as the World Wide Web, and says it is also referred to as the Internet.

Which Indian satellites made long-distance communication, television and radio effective?

Bhaskar, Challenger and INSAT I-B.

Is the telephone still important today?

Yes. NCERT says it is still the most commonly used mode, and in developing countries cell phones made possible by satellites are important for rural connectivity.

What made the global village a reality?

NCERT says modern communication systems, more than transportation, made the global village a reality.