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
Disadvantages of Manual Records  More manpower is required to record/storelretrieve the data.   Bulky paper records take up more space and this problem increases with

how to use computer and how we can manage it

No charges are reimbursed to the patient until the deductible has been met. Hospital visits are reimbursed at 80% and Lab visits are reimbursed at 70%. Doctor''s office visits are

How would you format while loops to fufill my project write up?

ANALOGUE COMPUTERS A computer is basically a problem-solving device. In aircraft radio systems the problem to be solved is concerned with navigation, in that given certain inf

Database Management Software: For storage of large amounts of varied data, and rapid retrieval and interpretations of data, the database is the ideal tool. It is most useful for s

Problem 1 What is conditional operator? Using conditional operator find a smallest number between two numbers Defining conditional operator Using it to find smallest n

Question 1 Write a note on advantages and disadvantages of Linux 2 Write a note on "File Permissions" on linux 3 Explain the usage of following Linux commands Cd kill

grades computation

Question 1 Discuss the usage and benefits of storyboarding Question 2 Explain the different stages of scriptwriting Question 3 Explain the 12 fundamental principle