PHY SR CS M01 EVLUTION COM(11 Jul 2016).ppt

Imp PPT for communication system

1. COMMUNICATION SYSTEMS
COMMUNICATION
SYSTEMS

2. COMMUNICATION SYSTEMS
EVOLUTION IN
COMMUNICATION

3. COMMUNICATION SYSTEMS
Communication Systems
Evolution in communication

4. COMMUNICATION SYSTEMS
What is communication
for a common man ?
Can you imagine the world
without communication
Communication has become
one of the primary needs for
living things
Communication is the basic process of
exchanging information
It is the process used by human beings to
convey their feelings, ideas & thoughts
These may be verbal or non verbal
Major communication till date
is through spoken words
Shelter
Food Clothing
Communication

5. COMMUNICATION SYSTEMS
Communication refers to the faithful transfer of information or
message from one point to another point where it reaches in an
intelligible form.
Now
communication
can be technically
defined as

6. COMMUNICATION SYSTEMS
1. The process of exchanging information is known as...
a) interference
b)
c) broadcasting
d) communication
signalling
MCQS

7. COMMUNICATION SYSTEMS
2. Communication refers to the faithful transfer of information from one
point to ____ point where it reaches in an intelligible form.
a) same
b)
c) both ‘a’ and ‘b’
d) none of these
another

8. COMMUNICATION SYSTEMS
HISTORY OF
COMMUNICATION

9. COMMUNICATION SYSTEMS
History of communication
Before the discovery
of electricityLong distance communication was in the form
of drums, smokes, horn, lighting a signal fire
or waving a flag (semaphore).
After the discovery
of electricity in late
19
th
century
Year Event
1835Invention of telegraph
1876Invention of telephone
1895Invention of wireless
telegraphy
1936Invention of television
1955Invention of FAX
1968ARPANET- internet
1975Invention of fibre optics
1989 – 91Invention of World Wide Web(www)
Scientists like J. C. Bose , F.B Morse, G. Marconi
and Alexander Graham Bell have worked in the
field of modern communication.

10. COMMUNICATION SYSTEMS
1. The first internet is known as....
a) world wide web
b)
c) fax
d) ARPANET
fibre optics

11. COMMUNICATION SYSTEMS
2.Who invented telephone?
a) Marconi
b)
c) J.C. Bose
d) F.B. Morse
Graham Bell

12. COMMUNICATION SYSTEMS
3. After the invention of electricity the communication was through .....
a) smokes
b)
c) drums
d) telegraph
waving a flag

13. COMMUNICATION SYSTEMS
4. www stands for____ and was invented by _____.
a) world wide web, Tern Berners Lee
b)
c) wide world web, Tim Berners
d) web wide world, Mark Zuckerberg
world waving web, Robert Cailliau

14. COMMUNICATION SYSTEMS
5. Communication was in the form of ____ in olden days.
a) waving a flag
b)
c) smoke
d) all the above
drums

15. COMMUNICATION SYSTEMS
ELEMENTS OF
COMMUNICATION SYSTEM

16. COMMUNICATION SYSTEMS
A communication system is the set up used in the transmission
of information from one place to another.
Communication system
Transmitter Channel Receiver
+ +
Channel
Message

17. COMMUNICATION SYSTEMS
Communication system
modes
Point to point Broadcast
+
link
+
Sender Receiver
This mode consists of a single
sender & receiver

18. COMMUNICATION SYSTEMS
+
+
+
+
Broadcast:
This mode consists of a single
sender & multiple receiver
Sender
multiple
receiver

19. COMMUNICATION SYSTEMS
Elements of communication system:
source transmitter channel receiver user
Noise
Message
signal
Transmitted
signal
Received
signal
Message
signal

20. COMMUNICATION SYSTEMS
1.The main element of communication is .....
a) transmitter
b)
c) receiver
d) all the above
channel
MCQS

21. COMMUNICATION SYSTEMS
2.Television is an example of _____communication.
a) point to point
b)
c) transmitting
d) receiving
broadcast

22. COMMUNICATION SYSTEMS
3. Point to point communication has ___receiver and ___transmitter.
a) single, multiple
b)
c) single, single
d) multiple, multiple
multiple, single

23. COMMUNICATION SYSTEMS
Thank you…