Friday, 21 March 2014

14) developing technologies

digital television
digital TV is a way of receiving your television signal in a digital format. This allows TV companies to broadcast better quality sound, a higher definition picture and a wider range of channels than ever before. to use a digital television you have to subscribe to a broadband such as sky or virgin media. when you subscribe to a broadband you will then have to pay a monthly rate to be able to watch all the television channels.
  • Offers many more channels compared to terrestrial analogue
  • Higher quality images, especially HD television
  • Can display high quality pictures from Blu-Ray and games consoles plugged into the tv.
  • Higher quality sound
  • will not work with old anolouge televisions unless a new set top box is bought.
  • switching over to digital from analogue will mean spending money
  • with so many channels to fill, the quality of the programs

analogue television

Analogue television is the analogue transmission that involves the broadcasting of encoded analogue audi and analogue video signal one in which the information to be transmitted, the brightness and colors of the points in the image and the sound waves of the audio signal are represented by continuous variations of some aspect of the signal, its amplitude, frequency or phase. analogue television is not around anymore due to the switch over of digital television.
we have moved on to a better technology giving the viewers at home better television viewing.


Satellite television is television programming delivered by the means of communications satellite and received by an outdoor antenna, usually a parabolic reflector generally referred to as a satellite dish, and as far as household usage is concerned, a satellite receiver either in the form of an external set-top box or a satellite tuner module built into a television set. Satellite television tuners are also available as a card or a USB peripheral to be attached to a personal computer. In many areas of the world satellite television provides a wide range of channels and services, often to areas that are not serviced by terrestrial or cable providers.

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