Information and the Evolution of Human Communication. Animals communicate by exchanging signals that contain information. ... In the course of human evolution, the emergence of a special set of cognitive abilities and social motivations changed the way in which information is transmitted by a given signal. https://www.linkedin.com/in/nikhil-nkady/ https://www.slideshare.net/NikhilKadam66

1. The Evolution Of Human
Communication
- Presented by Nikhil Nandakumar Kadam

2. HUMA
N

3. Communication
 Communication is the process
where one person is expressing his
or her idea & the other one is
beingto the idea
by the one who is
listening
expressed
talking
 When this results to have an
understanding to both of them,
therefore there is already a
communication.

4. •Some of the first form of
communication were fire , smoke signal
and horns.
•It is one of the oldest forms of long
distance communication.
•Smoke signals communicated location,
while horns told the time and when
events were taking place in prehistoric
times.
The Smoke Signal
 a form of visual communication used
over long distance.
 In Ancient China, soldiers stationed
along the great wall would alert each
other of impending enemy attack by
signaling from tower to tower.
 they were able to transmit a message as
far away as 750km (470miles) in just a
few hours.

5. •In the 5th centaury, letter and
documents could be sent by using
pigeons homing abilities
•Pigeons were trained by being
removed from their homes and taken
to a destination, from which they
would returned home.
Pigeon
•Pigeons were effective as
messengers due to their natural
homing abilities.
• The Pigeons were transported to a
destination in cages, where they
would be attached with the
messages, and then naturally the
pigeon would fly back to its home
where the owner could read his mail.
•Pigeons have been used to great
effect in military situations.

6. • SIGNAL LAMPS USED LIGHT TO COMMUNICATE VIA MORSE CODE
BEGINNING IN 1867.
• It is a visual signalling device for optical communication (typically using
Morse code).
• Modern signal lamps are a focused lamp which can produce a pulse of
light. In large versions this pulse is achieved by opening & closing shutters
mounted in front of the lamp.
Signal lamp

7. Mail
 Mail, or post, is a system for transporting letters & other tangible
objects: written documents, typically enclosed in envelopes, & also
small packages are delivered to destinations around the world.
 Anything sent through the postal system is called
mail or post.
 A postal service can be private or public, though many
governments place restrictions on private systems.
 Since the mid-19th century national postal systems have generally
been established as government monopolies with a fee on the
article prepaid.

8. NEWSPAPERS
Still used today, newspapers were often used starting in the 1800s to
provide mass communication, rather than one on one communication,
through printed text distributed throughout a town.
• A newspaper is a scheduled
publication containing of current
events, informative, articles,
editorials, diverse features &
advertising.
• Johannes Gutenberg's work on the
printing press began in 1436.
• The invention of printing press led
to an entire new era of mass
communication.

9. • The telegraph became popular in 1838.
• Twenty years later, the Trans-Atlantic telegraph
provided communication between America and
Europe.
• The first message sent by this method said: "Europe
and America are united by telegraphy.”
• Telegraph that uses electrical signals, usually
conveyed via telecommunication lines on radio.
• The electromagnetic telegraph is a device for
human-to-human transmission coded text messages.
• It is the first form of electrical telecommunications.
• Later electrical telegraph networks permitted
people & commerce to almost instantly transmit
messages across both continents & oceans.
THE TELEGRAPH

10. WIRELESS TELEGRAPHY CAME IN 1893, WHEN
NIKOLA TESLA USED “WIRELESS LIGHTING.”

11.  The Telephone is a telecommunication device that
transmits & receives sounds,
 They are a point to point communication system to
allow two people separated by large distances to talk
to each other.
 Developed in the mid- 1876 by Alexander Graham
Bell.
 The telephone is indispensable to businesses,
household & now one of the most common
appliances in the developed world.
Telephone

12. TRANSCONTINENTAL TELEPHONE CALLING
ALLOWED PEOPLE TO CALL OTHERS OVERSEAS
BEGINNING IN 1914.
I n 1 9 5 6 , t h e f i r s t t r a n s - A t l a n t i c t e l e p h o n e
c a b l e ( w h i c h i s l o c a t e d u n d e r w a t e r ) b e c a m e
a v a i l a b l e f o r u s e .

13. THOMAS EDISON INVENTED THE PHONOGRAPH
IN 1877.
The Acoustic Phonograph played sound vibrations
waveforms by vibrating along the grooves of a disc to
create sound waves.

14. • THE RADIO BECAME AVAILABLE AROUND 1896,
• Radio is the transmission of electromagnetic waves through free space
• Frequency range from about 3 kHz to 300 GHz called as radio waves.
• Electromagnetic radiation travels by means of oscillating electromagnetic
fields that pass through the air & the vacuum of space.
Radio

15. •THE FIRST TELEVISION (T.V.) WAS
MADE IN 1927.
•Today, televisions are widely used for
information and entertainment.
•TV is a medium for transmitting & receiving
moving images.
Television
• The television set has become common place in homes, business &
institutions,
•A Vector for advertising a source of entertainment & news.

16. • COMPUTER NETWORKING ALLOWS INDIVIDUALS
• WITH COMPUTERS TO CONNECT WITH OTHER
COMPUTER USERS.
• The first wide area network (WAN) came in 1965
• ARPANET was used to connect four universities in 1969.
Computer Network
• Collection of computer hardware interconnected by
communication channels that allow sharing of
information.
• Networks may be classified according to a wide variety
of characteristics.
• It is the medium used to transport the data,
communication protocol used, scale, & scope.

17. • THE FIRST MOBILE PHONE WAS
INVENTED IN 1973 BY MOTOROLA.
• Our smartphones today are leaps and
bounds above the capabilities and
technology of original cell phones.
 It can make & receive
telephone calls over a radio
link moving around a wide
geographic area.
 It connect a cellular network
provided by a mobile phone
operator, allowing access to the
public telephone network.
 The first hand held mobile
phone was demonstrated by
Dr. Martin Cooper of
Motorola in 1983, the
DynaTAC 8000x was the first
to be commercially available.
Mobile Phones

18. Internet
 It is a network of networks that consists
of millions of private, public, academic,
business, & government networks, of local
to global scope, that are linked by a broad
array of electronic, wireless & optical
networking technologies.
 The Internet carries an extensive range of
information resources & services, such as
the inter- linked hypertext documents of
the World Wide Web (WWW) & the
infrastructure to support email.

19. IN 1970, OPTICAL FIBERS WERE CREATED.
In the late 70s, fiber optical telecommunications were
introduced. This helped to speed up communications with
better connections and less issues.
These are used today to deliver faster internet and larger
bandwidth.

20. • Electric mail: also known as
email or e-mail is a method of
exchanging digital messages
from one or more
recipients.
• Modern email operates
across the internet or other
computer networks.
• Today’s email systems are
based on a store- and-
forward
• E-mail became available in
1981.
Electric Mail

21. SOCIAL MEDIA HAS BECOME VERY
A POPULAR
WAY TO COMMUNICATE WITH
FRIENDS, FAMILY, AND BUSINESS
PARTNERS TODAY.
Social Networking
 A social networking service is an online
platform or site that focuses on facilitating
the building of social networks or social
relations among people who share
interests, activities, backgrounds or real-
life connections.
 A social network service consists of a
representation of each user and social
links, & a variety of additional services.
 Most social network services are web-
based & users to interact over the internet.
 example: Skype, Facebook, Twitter,
Google+ etc.

22. Conclusion : WHAT ’S NEXT?
Final Inference : Having a good grasp on the transformation of
communications over time helps to explain the vastness of its possibilities.
 The communication revolution has brought around many positive effects.
 make important decisions without having to travels hundreds of miles or
meet face to face.
 The business world can now communicate faster, more efficiently, and
therefore turn more profits.
 It also increases employment and therefore decreases poverty in more
developed countries.
 It breaks down social and worldwide barriers, allowing people to interact
across the globe, different races, cultures, backgrounds and statuses interact.

24. Reference Book details
Book name : The Evolution of
Communication
Author : Marc D Hauser
Pages : 776 pages
Publisher : MIT Press 1996-07-01