1. TRENDS IN
COMMUNICATION
TECHNOLOGY

2. Technology in Communication
• In the modern times,
Communication and Technology
are very closely related.
• It has become impossible for
institutions to run without the
modern technology.
• Telephone, Television and Internet
have become an integral part of
day to day life.

3. The Milestones of
Technology in Communication
1 Telecommunication
2 Invention of Radio
3 Invention of Television
4 Invention of Computer
5 Internet
6 Wireless technology

4. Telecommunication
• Telecommunications involves the use of electrical
devices such as the telegraph, telephone, and
teleprinter, as well as the use of radio and microwave
communications, as well as fiber optics and their
associated electronics, plus the use of the orbiting
satellites and the Internet.
• The non-electric telegraph was invented by Claude
Chappe in 1794.
• In 1809, a crude telegraph was invented in Bavaria by
Samuel Soemmering.

5. Telecommunication
Telegraph Fax Telephone
(1795-1832) (1843) (1849)

6. Transformation of Telephone
1930 (German rotary
The tin can telephone, or 1896 (Swedish
telephone)
'lover's phone' Telephone)

7. Transformation of Telephone
Touch Pad tone dialing Cordless Phone Wireless Local Loop
(1960s.) (1965 ) (WLL) (1990s)

8. Radio
• It started with the discovery of "radio waves" -
electromagnetic waves that have the capacity to transmit
music, speech, pictures and other data invisibly through the
air.
• Guglielmo Marconi, an Italian inventor, proved the feasibility of
radio communication. He sent and received his first radio
signal in Italy in 1895.
• By 1899 he flashed the first wireless signal across the English
Channel and two years later received the letter
"S", telegraphed from England to Newfoundland. This was the
first successful transatlantic radiotelegraph message in 1902.

9. Evolution of Radio
FM/AM (1897-1920) Satellite Radio (1992) Internet (1994)
1 This is the most primitive 2 Here the Radio is not a free 3 Internet Radio is totally
type of Radio where the service, it is just like the computer based and
signals are received by DTH service of Television, there is no separate
the Radio set. There is no the customer will need to device for accessing the
subscription required and subscribr to the provider content. For example.
(such as World Space
it’s a free service. www.onlineradios.in
Radio) and the signals can
Spotify
be received in any part of
the country. It has not been
widely accepted.
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10. Television
• As a 23-year-old German university student, Paul
Nipkow proposed and patented the first
electromechanical television system in 1884.
• In 1926, just a little after Jenkins, a British inventor
known as John Logie Baird, was the first person to have
succeeded in transmitting moving pictures.

11. The transformation of Television
CABLE (1948) DTH (Direct To Home) (1977) INTERNET TV (1998)
1 The channels were 2 It eliminated the need for 3 tInternet TV is yet to be
received by the use of a Cable Operator and fully developed in
cables. A satellite receiver long cables, because Countries like India. The
would be placed by the people could set up their Television is connected to
Cable Operator at the TV own dish and connect it broadband Internet and
centre and all the house to their Television, via set live video streaming is
holds would be top box. This has made received by the television.
connected by the use of TV viewing hassle free. Eg. Tvonline by Greek
cables. And the digital encoding film Director Angelos
made the picture quality Diamantoulakis
much more superior.
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12. Computer
• Computer is any device which
aids humans in performing
various kinds of computations or
calculations.
• The simplest form of a computer
was an “Abacus”, which helped
in doing arithmetic calculation.
• Possibly the most significant of
those shifts was the invention of
the Graphical User Interface
(GUI).

13. First Generation (1940s – 1950s) Second Generation (1955 – 1960)
(ENIAC)
Third Generation (1960s)

14. Fourth Generation (1971 – present)
First Generation of Second Generation Graphical User Interface
Microcomputers Microcomputers (GUI) (1968 to present)
(1971 – 1976) (1977 – present)

15. Portable Computers (1981)
Laptops Ultrabooks Tablet PC
(Eg. Apple powerbook) (Eg. HP envy) (Eg. Apple Ipad)

16. Internet
• The Internet was the result of some visionary thinking by
people in the early 1960s who saw great potential value in
allowing computers to share information on research and
development in scientific and military fields.
• The Internet, then known as ARPANET, was brought online
in 1969 under a contract let by the renamed Advanced
Research Projects Agency (ARPA) which initially connected
four major computers at universities in the South Western
US (UCLA, Stanford Research Institute, UCSB, and the
University of Utah).

17. A) Download
• In computer networks, to download
means to receive data to a local
system from a remote system, or to
initiate such a data transfer.
• Examples of a remote system from
which a download might be performed
include a web server, FTP server,
email server, or other similar systems.

18. B) Streaming media (1996)
• Streaming media is
multimedia that is constantly
received by and presented to an
end-user while being delivered
by a provider.
• “To stream", refers to the
process of delivering media in
this manner; the term refers to
the delivery method of the
medium rather than the medium
itself.

19. Wireless Technology (FSO) (1960s)
•Free Space Optical (FSO)
networks are capable of providing
low cost fibre-like quality,
reliability, and capacity, without
requiring buried optical fibre
cabling.
•Accordingly, they are well suited
for ultra broadband last-mile
business and residential services,
and for cellular and WiFi
backhaul.

20. Wireless Technology
1991
1994
19th Century
Infra red
Based on power

21. REFERENCE
• Wikipedia
• historyofcomputer.org
• soderblom.se
• wilcorpinc.com
• radio-electronics.com

22. THANK YOU!
Prepared by:
Submitted to: Sharika Gogoi (10-H-37)
Dr. Juliana Sarmah Vishal Langthasa (10-H-43)
Dr. Minerva S. Boruah Rishamoni Handique (09-H-32)
Department of Extension Education Lisha Rajkhowa (09-H-16)