Choice of medium - transmission channels, Basic Computer Science

Choice of Medium:

All the transmission channels discussed in the foregoing paragraphs can be used as point to point connections or as broadcast systems. Transmitting information electronically or photonically is considered in two aspects - telecommunications and broadcasting. The former is a direct interchange of information within limited groups of talkers and listeners (which may be terminals of computers as well as people). Thus, there is a certain amount of interaction. Broadcasting is the mass distribution of information to large markets with one 'speaker' and many "listeners' and no real interaction. 

Because of the increasing linking up of the two forms with computers, the traditional distinction is being blurred and now you get systems like electronic mail, which can either he broadcast of telecommunication and cable TV broadcasting systems which carry telecommunications. And any given transmission circuit could be made up of a mixture of terrestial microwaves, cable and satellite links. Thus, a given service could be transmitted over more than one of channel. For example, a television program can be broadcast let us say normally - as you get it at home via satellite or via broadband coaxial cable using radio frequency. 

The decision on which medium to use is determined by factors such as the distance involved, the area to be covered and the type of information to be sent. For example, terrestial microwave radio transmission requires line-of-sight communication and for long distances repeaters must be added. If the medium has to accommodate video or high speed data then a broad bandwidth such as is provided by satellite and coaxial, fibre optical cables will be required.  

Posted Date: 10/25/2012 12:48:23 AM | Location : United States







Related Discussions:- Choice of medium - transmission channels, Assignment Help, Ask Question on Choice of medium - transmission channels, Get Answer, Expert's Help, Choice of medium - transmission channels Discussions

Write discussion on Choice of medium - transmission channels
Your posts are moderated
Related Questions

Ask question #Minimum. Hello. ser can. you. tell. me. that. what. is. the. batter. side. for. BIOLOGY. Students. from. class. 12. / xii. 100 words accepted#

Question 1 What is Collaboration? Write down the objectives of collaboration Question 2 What is proxy server? Write down the reasons for using proxy server Question

Stable wireless networks and mobile devices online tutoring In Bluetooth it is a basically a proprietary open super wireless technology standard for exchanging data over the sh

Online Searching: The real difference between manual searching and online searching lies, according to William A. Katz, in the mechanics and the jargon of the latter. However,

Problem 1. Convert the following number system 12.34 (8) to binary number system 23BC.0A (16) to decimal number system 456.012 (16) to Octal number system 123

Question 1 Explain the following system design tools in detail System Flowcharts Decision tables Decision trees Organization charts Question 2 Write s

Pebble Merchant Problem Description There is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides.

What is a Structure?

each of the following functions has the form f(x ) = (ax+b) mod n. assume that each function has type N base n arrow N base n, so that we can think of f as a cipher for an alphabet