Pptx on radio

BY MAEGHA SUBRAMANIAM

Mass media is media which is intended for a large audience. It may take the form of

broadcast media, as in the case of television and radio, or print media, like newspapers

and magazines. Internet media can also attain mass media status, and many mass media outlets maintain a web presence to take advantage of the ready availability of

Internet in many regions of the world

WHAT IS MASS MEDIA

RADIO CINEMA OUTDOOR MEDIA MOBILE INTERNET TELEVISION NEWESPAPER

TYPES OF MEDIUMS

Radio is the transmission of signals through free space by electromagnetic

waves with frequencies significantly below visible light, in the radio frequency

range, from about 3 kHz to 300 GHz. These waves are called radio waves. Electromagnetic radiation travels by means of oscillating electromagnetic

fields that pass through the air and the vacuum of space.

WHAT IS RADIO

Guglielmo Marconi was the one to invent the radio he got the idea from Henrich Hertz and got the

idea of radio waves and decided it can be used to receive and send

telegraphic messages that is how he transmitted radio waves all over

the Atlantic ocean in 1995

WHO INVENTED IT

Radio owes its development to two other inventions, the telegraph and the telephone, all

three technologies are closely related. Radio technology began as "wireless telegraphy".

Radio can refer to either the electronic appliance that we listen with or the content listened to. However, it all 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

WHEN WAS IT INVENTED

In England, a young Italian experimenter named Guglielmo Marconi had been hard at work

building a device for wireless telegraphy. The young Marconi had taken out the first wireless

telegraphy patent in England in 1896. His device had only a two-circuit system, which

some said could not transmit "across a pond." Later Marconi set up long-distance

demonstrations, using a Tesla oscillator to transmit the signals across the English Channel.

HOW WAS IT INVENTED

My perspective on radio is

Good as well as bad

GOOD;

The good points are;•Entertains•Keeps you updated•Gives current affairs•Talks about compititons

MY PERSPECTIVE ON RADIO

Bad;

To much talking by radio jokeys•Plays very old songs

Other wise radio has a positive impact on me

CONTINUE……

T.Y