Communication channels, Basic Computer Science

COMMUNICATION CHANNELS:

A wire pair connecting two telephones is the simplest circuit, allowing communication in both directions. Other channels include coaxial cables, optical fibres, satellites, a light beam, microwaves, and others. Whatever the physical medium over or through which message travels, transmission may take place in a number of different modes. They are :

Simplex Half-duplex and Full-duplex. Simplex  In this type of channel, the message travels in only one direction, that     is from point A to point B but not back again. 

Half-Duplex: Transmission can take place in either direction, but not at the same time. In other words, message can be transmitted either from A to B or by B to A one at a time. 

Full-Duplex: In this type of arrangement messages can be transmitted and received over the same channel at the same time. Many librarians and information scientists are familiar with the latter two types because database search terminals must be set to transmit full or half duplex in order to communicate with database vendors' computers.  

Posted Date: 10/24/2012 5:08:07 AM | Location : United States







Related Discussions:- Communication channels, Assignment Help, Ask Question on Communication channels, Get Answer, Expert's Help, Communication channels Discussions

Write discussion on Communication channels
Your posts are moderated
Related Questions
Write an alogorithm to calculate the right angled triangle

The development of your learning module is very time consuming, so it is recommended that you begin creating your learning module during this first week. Before you begin, download

An array A is said to be special if all its elements are same. Given an array, your task is to convert the array to special array by performing some operations. The allowed operati

Consistency or data in DBMS Consistency - data in DBMS(Database) is accurate in modeling real world, follows integrity constraints User may ensure transaction consistent by itsel

what is cpu

im student of BSCS 1st semester and I have to make project for IT fair and I dont know computer that very much so please I required your help, help me if you can. thanks

how much it cost for 8 week class

Question 1 What are the important Issues in Search Problem Question 2 What do you mean by Predicates? Briefly explain Question 3 What are the advantages of Wireles

what is the goals of enterprise collaboration system?

Using Weka 3.6 (basketball or cloud data set). Using the EM clustering method, how many clusters did the algorithm decide to make? If we change from "Use Training Set" to "Percenta