Communication channels, Basic Computer Science

Assignment Help:

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.  


Related Discussions:- Communication channels

What is a signaling protocol, QUESTION (a) How VoIP Works and how VoIP ...

QUESTION (a) How VoIP Works and how VoIP helps today's business? (b) What is a signaling protocol? Explain about SIP components and their key benefits (c) What is IPTV? L

ICT IN BUSINESS, Explain how ICT can be used for achievement of each of the...

Explain how ICT can be used for achievement of each of the following business objectives, illustrating your answer with examples: 1. Customer intimacy 2. Low-cost leadership

Represent the user interface, Question: CarRide.com is the web portal t...

Question: CarRide.com is the web portal to CarRide Ltd; a car rental company that makes full use of technological advances to make sure you enjoy the ride with your rental car.

Explain the term "algorithmic delay", QUESTION a) What is Time Division...

QUESTION a) What is Time Division Multiplexing (TDM), illustrate your answer with a diagram b) Describe four types of RTCP messages c) i) What is silence compression in I

Central processing unit (cpu), Central Processing Unit (CPU): The CPU ...

Central Processing Unit (CPU): The CPU is the physical device that controls computer operations. It is considered as the 'brain' of the computer system. The CPU comprises thre

Why we need data mining? Give an example to illustrate your, Why we need da...

Why we need data mining? Give an example to illustrate your answer.

Assignment - concept of programming language , Assignment :  It is compose...

Assignment :  It is composed of variable name, an assignment operator of the language and a value or variable or some expression as per composition allowed based on rules defined

Perform a mail merge to send invitation, Question Elaborate the various...

Question Elaborate the various steps in performing a Mail Merge. Perform one mail merge operation for sending invitation for a conference which is being conducted in your organ

Q1, Write a half-page summary explaining IP spoofing.

Write a half-page summary explaining IP spoofing.

Differentiate the client–server and peer-to-peer models of d, The client-se...

The client-server model firmly differentiates the roles of the client and server. According to this model, the client requests services that are provided by the server. The peer-to

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd