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

Autonomous rational agents - artificial intelligence, A utonomous Rational...

A utonomous Rational Agents: In many cases, it is not accurate to talk about a particular program or a particular  robot, as the combination of and software and hardware in so

What is microcontroller?, Microcontroller: A highly integrated microprocess...

Microcontroller: A highly integrated microprocessor designed specifically for use in embedded systems. Microcontrollers typically includes an integrated CPU, memory (a small amount

Printer output, Printer output : Consider what is required here. ...

Printer output : Consider what is required here. Do you just require management information on the one hand or camera copy for reprographic purposes? Inkjet Very quiet. C

Computer science, You recently returned some homework I completed but i lef...

You recently returned some homework I completed but i left of the final 10 questions. Should not take long just needs some commands interpreted. How much will it cost for me to get

What is Multilevel Feedback Queue Scheduling?, • Multilevel feedback queue...

• Multilevel feedback queue-scheduling algorithm enables a process to move among queues. It uses a number of ready queues and acquaintances a dissimilar priority with every queue.

What is blu-ray disk, Question 1 Explain the configuration steps involved ...

Question 1 Explain the configuration steps involved in CMOS setup Date and time Error halt Floppy drive A Halt on Hard disk C HDD Delay Keyboard Memory

Visual basics, Assume that s is a string variable  that is supposed to con...

Assume that s is a string variable  that is supposed to contain a value to be converted to integer. Write a fragment of code that converts the value to integer variable  and displ

What is nanp? explain, Question 1 What is NANP? Explain Question 2 ...

Question 1 What is NANP? Explain Question 2 What is E&M signaling? Discuss in brief Question 3 What are the common custom calling features? Question 4 Expl

Computer graphics, A scaling constant indicates an expansion of length

A scaling constant indicates an expansion of length

Democracy and ICT, Ask questio Discuss the idea of democracy and its overl...

Ask questio Discuss the idea of democracy and its overlapping meanings for IS design. How would you democratically design IS? How does participation help the practice of democrac

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