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

Why is the atm selected as a transport network in 3g, Why is the ATM select...

Why is the ATM selected as a transport network in 3G? Answer: ATM provides efficient support for transmission of voice, data, and video ATM provides QoS guarantee and reliability

Pep8, Write an Assembly program that reads an integer (-32,768 through 32,7...

Write an Assembly program that reads an integer (-32,768 through 32,767) in decimal and prints its equivalent in binary. The output must show all 16 bits. And you must use a loop

Library function, Library function :   These are the functions supplied...

Library function :   These are the functions supplied with the programming language. The code or definition of library functions does not have to be written in a user program w

Explain the concept of linking and relocation, Question 1 Write an assembl...

Question 1 Write an assembly language program to find the highest among two numbers Question2 Draw and explain the internal architecture of 8085 briefly Question3 Explai

Data Mining Assignment (by Weka), Hi there, I''m just asking that do you d...

Hi there, I''m just asking that do you do data mining assignment?

Why assembly language is good?, Because it is enormously low level, assembl...

Because it is enormously low level, assembly language can be optimized enormously well. Therefore assembly language is used where the extreme performance is needed for applications

Functions, difference between recursion and iteration

difference between recursion and iteration

Explain the configuration steps involved in cmos setup, Question 1 Explain...

Question 1 Explain the important concepts of modern CPU Question 2 Discuss the instructions that need to follow while installing new mother board Question 3 Explai

Programmable rom (prom) , PROGRAMMABLE ROM (PROM): The user can program...

PROGRAMMABLE ROM (PROM): The user can program a PROM after purchase.  Each memory bit element in the PROM contains a nichrome or silicon link that acts as a fuse.  The user can

Cost of computer, If you have to consider the installation of communication...

If you have to consider the installation of communications packages, the same questions have to be asked. (a) Does the software and the modem support the necessary transmission

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