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
Question 1 . Explain briefly the functional units of a computer Question 2 . What do you mean by an interrupt Question 3 . Explain fetching a word from the memory

SOFTWARE BASICS: Software is a generic term covering the concepts, procedures and instructions which cause the computer systems to accomplish the required job, Generally, soft

• A multilevel queue scheduling algorithm divides the ready queue in several separate queues, for example • In a multilevel queue scheduling processes are lastingly assigned to one


create a flowchart showing average score for the 3 quizzes assume that there are 3 sections each having 5 students the only valid number to be entered is 1-100 for the quizzes shou

write a program of 2 sum and 2 product number in C++ programming language

• The key to preventing problem involving shared storage is get some way to prohibit more than one process from reading and writing the shared data concurrently. That part of the p

Can someone help me write a code for force = mass * acceleration.

Question 1. Explain the levels of management? Question 2. What are the advantages and disadvantages of DBMS Question 3. What are the advantages and disadvantages o

The difference between kernel mode and user mode gives a rudimentary form of security in the following manner. Convinced instructions could be executed only when the CPU is in kern