Radio

RADIO 👂

The radio was invented in 1895. In 1860 the researcher find radio waves and they know, these waves are used for communication, in this technology using radio waves. In 1866 its prooved variable is fixed in space as same light and hit. Radio needs a transmitter to modulate a property of the energy produced to impress a signal. On it, a radio antenna can be used for catching networks. antenna converting waves into electronic currents.

Anntena is useful for catching networks and electronic-organic waves by a tune receiving. It can catch networks waves and make current and it can visible into power. gives them a better network for better communication.

In 1859 Jagdish Chandra Basu discovers the seat in Aakash Vani center. Electricity waves will be converted into sound and telecast through an air. There are three types of radio are available; regional, all India, foreign-related.

Regional: regional radio telecast in the only sate. and gives only sate news.
All India: all India radio telecast all over India and gives them all India news.
Foreign-related: foreign radio telecast programme in whole the countries and telecast country news.

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Impact of cable TV

THE IMPACT OF CABLE T.V

The new satellite and the cable TV systems have become the important need of the day. In the field of information and technology TV has become a craze among the children, the youth and the old. In the field of information cable TV has brought us closer to the distance education and computer education have come to stay, However, the other side of a picture is very discomforting to an average Indian, of cable television is considered as cultural invasion of India. cable TV is a highly lucrative business. The owners of channels complete with each other to lure the public television programmes which are beamed in my home in India are providing much better.

Entertainment to the viewers in comparison to Doordarshan However, the other side of the picture is very discomforting to an average Indian the introduction of cable television is considered as cultural invasion of India cable TV is a highly lucrative business. The owner of channels competes with each other to lure the public television programmers which are beamed in many. Homes in India are providing much better entertainment to the viewers in comparison to Doordarshan However, with the arrival of cable TV a feeling of potential danger is registered in the minds of the people.

many consider that TV is an idiot box and essential evil. The obscenity on the TV channels. is on the increase the impressionable children, young men & women learn most of the undesirable things. uncensored TV programmes are a distant reality advertisements on the TV have promoted consumer culture to the advantage of the multinationals, no doubt, television has made man aware of day to day affairs of life. on the other hand, it has promoted invasion of Indian culture shattering most of the Indian traditions and moral values.

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monitor and screen

Monitor and Screen 

The monitor is an output device and we also know it as a Visual Display Unit. It looks like a television but it works like a monitoring screen for computers.

How Many Types of Screen:-  

1. Monochrome: It made by two words first is "Mono" and second is "Chrome", mono refers single and chrome means made by colors. so that why reason. monochrome is known as black & white display also. 

ii) Gray-Scale: it looks like a monochrome but it not. and it is used for handy computer and laptop

iii) Color monitor: color monitors are made with three colors red blue, green. it showing graphics with high resolution. and it means that the product compatible with the gamut associate large scale triangle can reproduce in a wider range of color on the screen. 

RGB color are combine and can be  converted into 16 million colors and it can be seen on screen

Types of Monitor

CRT: CRT is a most useful device. it's known as a VDU. picture tube element is present in a T.V set.

CRT screen coded with phosphorus. after the coding is fixing in electronic beams then the image layout is shown on screen 

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