4. WHAT IS COMMUNICATION?
• COMMUNICATION IS THE PROCESS
WHERE ONE PERSON IS EXPRESSING
HIS OR HER IDEA & THE OTHER ONE
IS LISTENING TO THE IDEA BEING
EXPRESSED BY THE ONE WHO IS
TALKING
5. EVOLUTION OF COMMUNICATION
• TO UNDERSTAND
COMMUNICATION AND OTHER
FORMS OF COMMUNICATION
AT PRESENT. ONE HAS TO GO
BACK TO THE PAST. THEY
HAVE ROOTS THAT GO BACK
QUITE A WAY TO THE PAST.
SINCE THE BEGINNING OF
TIME, PEOPLE HAVE HAD THE
NEED TO COMMUNICATE WITH
ONE ANOTHER.
7. SMOKE SIGNALS
• IT IS ONE OF THE OLDEST FORMS OF
LONG DISTANCE COMMUNICATION. IT
IS 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.
• IN THIS WAY, THEY WERE ABLE TO
TRANSMIT A MESSAGE AS FAR AWAY AS
750KM (470MILES) IN JUST A FEW
HOURS.
8. PIGEON
• IT IS THE USE OF HOMING PIGEONS TO
CARRY MESSAGES. 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.
9. HANDWRITTEN LETTERS
• PEOPLE SEND LETTERS FOR
COMMUNICATION
• HE FIRST RECORDED HANDWRITTEN
LETTER (EPISTLE) WAS BY PERSIAN
QUEEN ATOSSA AROUND 500 BC.
• THE STAMPED LETTER WE KNOW
TODAY CAME INTO BEING IN THE REIGN
OF QUEEN VICTORIA IN 1840.
• THE LETTER DELIVER IN HIS
DESTINATION AFTER A LONG TIME, ONE
MONTH OR SOME WEEKS.
11. NEWSPAPER
• A NEWSPAPER IS A SCHEDULED
PUBLICATION CONTAINING OF
CURRENT EVENTS, INFORMATIVE,
ARTICLES, DIVERSE FEATURES,
EDITORIALS, & ADVERTISING.
• NEWSPAPERS DEVELOPED IN THE 17TH
CENTURY, AS INFORMATION SHEETS
FOR MERCHANTS. BY THE EARLY 19TH
CENTURY, MANY CITIES IN EUROPE, AS
WELL AS NORTH AND SOUTH AMERICA,
PUBLISHED NEWSPAPERS.
• “JOHANNES GUTENBERG” WORK ON THE
PRINTING PRESS BEGAN IN 1453. THE
INVENTION OF PRINTING PRESS LED TO
AN ENTIRE NEW ERA OF MASS
COMMUNICATION.
12. ELECTRIC TELEGRAPH
• AN ELECTRICAL TELEGRAPH WAS A
POINT-TO-POINT TEXT MESSAGING
SYSTEM, USED FROM THE 1840S.
• DEVELOPED IN THE 1830S AND 1840S
BY SAMUEL MORSE AND OTHERS.
• THE TELEGRAPH REVOLUTIONIZED
LONG-DISTANCE COMMUNICATION
• IT USED CODED PULSES OF ELECTRIC
CURRENT THROUGH DEDICATED
WIRES TO TRANSMIT INFORMATION
OVER LONG DISTANCES.
13. TELEPHONE
• THE TELEPHONE REFERRED TO AS A
PHONE, IS A TELECOMMUNICATION
DEVICE THAT TRANSMITS & RECEIVES
SOUNDS, USUALLY THE HUMAN
VOICE. 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- 1870S BY
ALEXANDER GRAHAM BELL.
14. RADIO
•RADIO IS INVENTED BY GUGILIELMO
MARCONI IN 1895.
•ITS COMMERCIALLY PRODUCTION
TRANSMISSION STARTED FOR MILITARY
PURPOSES.
•RADIO IS THE TRANSMISSION OF
SIGNALS THROUGH SPACE BY
ELECTROMAGNETIC WAVES WITH
FREQUENCIES.
•RADIO IS COST EFFECTIVE AND
PUBLICALLY AVAILABLE MEDIUM THAT IS
ACCESSIBLE FOR ILLITERATE PEOPLE.
15. TELEVISION
• TELEVISION IS A
TELECOMMUNICATION MEDIUM FOR
TRANSMITTING & RECEIVING MOVING
IMAGES
•MOVING IMAGES CAN BE
MONOCHROME (BLACK-AND WHITE) OR
COLORED WITH OR WITHOUT
ACCOMPANYING SOUND.
• COMMERCIALLY AVAILABLE SINCE
THE LATE 1920S
•IT KEEPS US INFORM ABOUT CURRENT
AFFAIRS OF THE WORLD,
NEWS ,ENTERTAINMENT AND TAUGHT
17. COMPUTER NETWORK
•COMPUTER NETWORK IS
INTERCONNECTION OF TWO OR MORE
COMPUTERS THAT ARE ABLE TO
EXCHANGE THE INFORMATION.
• CHARLES BABBAGE
•IN NETWORK COMPUTERS CAN BE
CONNECTED VIA COMMUNICATION LINKS,
WIRES AND RADIO LINKS.
•NETWORK MAY BE LOCATED IN A ROOM,
BUILDING, CITY OR ANYWHERE.
•COMPUTER NETWORKS MAY BE IN FORM
OF CLIENT-SERVER OR HYBRID MODEL.
18. MOBILE PHONES
• ALEXANDER GRAHAM BELL INVENTED THE
FIRST MOBILE PHONE, THEN MOTOROLA
INTRODUCED ITS FIRST MOBILE PHONE
1983.
• MOBILE PHONE IS HANDHELD WIRELESS
DEVICE THAT ALLOW USERS TO MAKE
CALLS , SEND MESSAGES AND RECEIVE
MESSAGES FOR THE PURPOSE OF
COMMUNICATION.
• NOW MOBILE PHONE HAS A LOT OF
FEATURES THAT ARE BUILT IN.
• IT ALSO KNOWN AS THE CELLULAR PHONE.
19. SMARTS PHONES
• WITH TIME MOBILE PHONES
CHANGE INTO SMART PHONE.
• SMARTS PHONE NOT ONLY
USED FOR COMMUNICATION
THEY ARE ALSO USED FOR
PICTURES AND VIDEOS ETC.
20. INTERNET
• BIGGEST SOURCE OF MASS
COMMUNICATION
• TODAY WE ARE NOT CONSIDER
OUR LIFE WITHOUT INTERNET
AND SMART PHONES.
21. SOCIAL NETWORKING
• A SOCIAL NETWORKING SERVICE IS AN ONLINE SERVICE,
PLATFORM, OR SITE THAT FOCUSES ON FACILITATING THE
BUILDING OF SOCIAL NETWORKS OR SOCIAL RELATIONS AMONG
PEOPLE WHO, E.G. SHARE INTERESTS, ACTIVITIES, BACKGROUNDS
OR REAL-LIFE CONNECTIONS.
