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

Explain the architecture of wap, Question 1 Discuss the benefits and goals...

Question 1 Discuss the benefits and goals of e-commerce Question 2 List and explain the features of portal Question 3 Elaborate the TCP/IP model Question 4 Explain the archi

What is a Process and process mangemen in operating system? , A process is ...

A process is a chronological program in execution. The constituents of a process are the following: • The object program to be executed ( described the program text in UNIX) • Th

Digital logic design, Find the complement of the following decimal 7

Find the complement of the following decimal 7

Time and space tradeoffs in search, Time and Space Tradeoffs in search-arti...

Time and Space Tradeoffs in search-artificial intelligence: In practice, you need to stop your agent at some stage if it has not searched a solution by then. However, if we can

Neural Network, The following data set describes whether a given coordinate...

The following data set describes whether a given coordinate is on land owned by XX government. (x,y) | Class ------------------------ (1.5,6) | owned (2,5) | owned (3,4) | owned (

Distinguish between the cryptoprovider and the managed class, QUESTION ...

QUESTION (a) Using the Luhn 10 check formula verify whether the following account number is compliant: 49927398716. Show details of your workings (b) Why is it advisable to

An e-mail account, An E-Mail Account: Inbox: Inbox is the main folder ...

An E-Mail Account: Inbox: Inbox is the main folder in your email account. It contains all the e-mails that have arrived in your e-mail account. You can click on inbox to see t

What are the goals of wap architecture, Question 1 Explain the naming conv...

Question 1 Explain the naming conventions of functions in WML scripts and also explain characteristics of functions in WML Question 2 What is WML input field? Explain WML

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