Communication networks and local area networks, Basic Computer Science

Communication Networks:

Communication networks are made up of transmission lines, concentrators, switching mechanisms and non-data processing components. Due to increased competition in the communication industry, new and specialised common carriers and value-added networks with data processing equipment, is also linked to communication networks. The current technological trend setter in communications is "packet switching technology". The greatest advantage of packet switched networks is in applications where the distance involved is great. Information services involve relatively large quantities of data for full bibliographic or full text retrieval, and therefore, the distance advantage applies more clearly to these applications. Depending upon the area of administrative jurisdiction, networks fall into three categories: Local Area Networks (LANs), Metropolitan Area Networks and Wide Area Networks (WANs). 

Local Area Networks (LANs):

A Local Area Network connects a large number of different types of equipment, including computer terminals, fax, telex, CD ROM players, etc., on a single site. The majority of LANs use packet switching technology and offer very high transmission speeds - up to one hundred times faster than those available on public networks at present. Most of these are baseband that is they carry only digital computer data, but broadband LANs can carry video and voice signals as well as data. The topology of LANs can vary greatly (i.e., linear, star, ring) affecting efficiency, reliability and costs.  

Posted Date: 10/25/2012 12:57:01 AM | Location : United States







Related Discussions:- Communication networks and local area networks, Assignment Help, Ask Question on Communication networks and local area networks, Get Answer, Expert's Help, Communication networks and local area networks Discussions

Write discussion on Communication networks and local area networks
Your posts are moderated
Related Questions
assignment of making a small database in C# with a back end support of MS Access. i required a form with following options : Enter a new user (user name, father name, age, d

Programming Assignment CS252 Spring 2014 Write an ARM assembly language subroutine that performs according to the following specification (Caesar cypher). Given a mixed case al

You have been approached by Company XYZ to design and deploy a new network that will span three cities in Queensland: Brisbane (12 users), Gold Coast (8 users), and Cairns (6 users

Source and Object Programs A set of instructions in a high-level language are called “Source program”. Since high-level languages are machine independent, it is required to fir

two characteristics og CISC architecture?

Circuit Switching: Many switching techniques are in use. One of them is line or circuit switching in which a communications path is actually established before the message is

Question 1: (a) Initially, human information processing was believed to occur in 4 distinct stages. State and describe each of those stages. (b) What are the 3 types of

Code for Program to find the second highest number from a given array in Assembly Language by using NASM

WHAT DO MEAN BY ALGORITHM,HOW CAN ALGORITHM HELP TO WRITE BETTER COMPUTER PROGRAM ,WRITE AN ALGORITHM IN COMPUTER INTEREST

speed up factor for superscalar architecture