introduction :[change | change source]
Television is one of the greatest wonders of modern age . It is a means of entertainment as well as education . It has a great importance in teaching science . There are education film companies which devote their time to picture lives and habits of animals insects fishes , germs and numerous other forms of life . In india we have a number of regional , national and international channels which telecast interesting T.V. Programmes in different languages .
T.V. means amusements :[change | change source]
T.V. is cheap source of entertainment with Compair mobile. Our life is busy , we want some relief from dull and routine work . The T.V. is the most popular means of entertainment . Beautiful scenes , sweet songs and thrilling dances make us happy . Some programmes are specially featured for children and some others for old people . The programmes are well categorized different channels according to the taste and interest of definite age group .
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Educational programmes :[change | change source]
T.V. programmes have their educative value too .A good film and programme provides us lot of knowledge .It may be give us knowledge sometimes about mathematics , science , geography , biology , medical science .We can watch new countries , rivers, mountains etc.We also come to know about dresses, customs festivals etc. of different regions and countries.
Disadvantage :[change | change source]
T.V. has an adverse effect on public morals. Students often be seen leaving their studies in order to enjoy T.V. programmes. Vulgar songs, dances, love scenes effect them a lot. These programmes have a bad impact on youth. So it is our duty to take care of children when are watching T.V.
But the evil effect should not make us to forget its many advantages. It is well known that it is an important means of recreation and research.
Telegram television (also known as a TV) is a machine with a screen. Televisions receive broadcasting signals and change them into pictures and sound. The word "television" comes from the words tele (Greek for far away) and vision (sight).
The television was invented in the 1920s but the equipment was expensive and the pictures were poor. By the 1950s, these problems had been fixed and TVs became widespread.
At first, all televisions used an antenna (or aerial). This would pick up television programmes from broadcasting stations. A TV station could be many miles or kilometers away, and still be received. TVs can also show movies from VCD and DVD players or VCRs. Cable TV and Satellite television can provide more programs at once than broadcast can. Video game consoles connect to most modern TVs. Some computers can also use a TV as a computer monitor.
All TVs have screens where the picture is viewed. Before the 1950s these were usually "black and white", which made everything look grey, but all modern TVs show colors. Most 20th century screens also had rounded corners. That is because television screens were cathode ray tubes. These are like heavy glass jars with one side bulging out to form the screen.
Today flat panel displays are the usual kind. These are usually flat rectangles with straight edges. This long rectangle looks more like the shape of a movie theatre screen. This is called widescreen. If a widescreen set was 30 cm tall, it would be 53 cm wide. For this to work best, TV shows also need to be made in widescreen. Widescreen sets can still be any size, but they have the same widescreen shape.
Related pages[change | change source]
References[change | change source]
|Wikimedia Commons has media related to Television sets.|
- "The Nibandh". Retrieved 2020-06-03.