5 - A variety of Telecommunication Systems

Abstract

This chapter provides information related to different telecommunication systems such as data communication system, facsimile communication system, videotex communication system, distance education system, and many more. Thirty years ago, computers were very expensive, making it difficult to buy one's own computer. As a result, computer sharing arose as a system for interconnecting computers and terminals. Users were able to access a computer via a terminal with time-sharing mode. This was a data communication system. Facsimile information is transmitted via a telephone line. The facsimile communication system was developed to transmit images at high speed. The videotex communication system provides the facility for retrieving image information. Advances in telecommunication technology led to the development of practical distance education systems. To provide education to rural areas with no schools, a distance education system is installed by which lectures are broadcast from a main campus to satellite schools. Students come to the satellite school to attend classes. The main campus and satellite schools are connected via the network, and lectures are transmitted from the main campus to the satellite.