Large plasma screens are the hot stuff of the day. They are a part of the home theatres that are such a prized system for every one who owns one. These large plasma screens don not only the home theatre systems but also of many computer systems especially large computers in satellite control rooms and weather forecast departments, etc. More recently and in the coming years- more frequently, these plasma screens will be increasingly used in communication systems using video conferencing equipment. Surely the term does not sound as if it is unknown because it is heard quite often in today’s age.

The input devices for the video conferences include either a webcam or it may have a video camera. A projector or a television acts as the output device. A computer monitor, when connected with the peripherals, serves the same purpose as the projector. Microphones are employed as the audio input device for inputting audio data or information. A pair of speakers is used along with these other output devices for the audio output. The internet is required to establish a connection for transfer of information using the above devices, in connection with each other. A local area network may be used in some cases.