Skip to main content

TYPE OF NETWORK

On the basis of geographical area and speed there are three broad categories of network
1.  LAN (Local Area Network)
2.  MAN ( Metropolitan Area Network)
3.  WAN ( Wide Area Network)
  LAN(Local Area Network): LAN is a type of network in which computers (nodes) are connected in a local unit or small geographical area, such as office, any department of a management system, Private Campus etc. The common connecting media used in LAN are cables, Wi - Fi, etc. LANs are restricted in size and are convenient to handle.
Characteristics of LAN
i)In LAN, Data communication takes place at a rate of 100 – 1000 mbps.
ii)   It is owned by an individual or an organization
iii) It provides the user with an access to share several common hardware resources. Ex- computers, terminals, printers, server, etc.
iv)There is no specific tariff for its usage.
MAN (Metropolitan Area Network)
MAN is a computer network designed for a town or city. It may be a single network or may be a network that connects several LANs. MAN may be operated by a single organization or by several organizations in the same city. Ex- telephone lines, networking of a MNC, networking of various government departments, etc. The communication media used in MAN can be wired or wireless.
Characteristics of MAN:
i) It covers larger than LAN but smaller geographical area than WAN.
ii) It is surrounded within a single city ot metropolitan area.
iii) It is mainly owned by large Organizations to interconnect all its branch across a city.
                       
   WAN (Wide Area Network)
WAN is a type of network in which computers are connected over large geographical area such as cities, states, countries or even the whole world. Its purpose is establish connection to share information among computers from one place to other globally.
The common example of WAN is “INTERNET”, The communication medium used in WAN is mainly unguided media (satellites).
Characteristics of WAN
i)   The speed of data transfer is up to 150mbps.
ii)  It connects large geographical area at low cost.
iii)WAN between two or more network are connected through ‘GATEWAY’ that establish connectivity between protocol used in one network with the other network.

These Two more types of network used in now-a-days:
PAN (Personal Area Network)
PAN is a computer network that is functional around an individual or is limited within a range of 10 meters. It is an interconnection of several peripherals or devices such as laptop, smartphone, printers, etc.
   Such Personal Area Network can be wired or wireless. Bluetooth, Infrared are common examples of PAN. Bluetooth’s PAN are also known as ‘Piconets’.

CAN (controller Area Network)
Controller Area Network is an ISO certified method of communication between various electronic devices used for lighting control, air conditioning, airbags, central locking embedded in a vehicle etc.


Comments

Popular posts from this blog

Computer Generations

 Computer Generations   Computers have evolved over time through different generations, each marked by significant technological advancements and changes in design and architecture. These generations are often categorized based on the underlying hardware and the key developments that distinguish one Generation from another. Let's explore the main computer generations: First Generation Computers    The First Generation of computers refers to the initial period of electronic computing, characterized by the use of vacuum tubes as the primary electronic component. This Generation spans the 1940s and 1950s and is marked by groundbreaking developments in computer technology.  Examples of First-Generation Computers:  o ENIAC (Electronic Numerical Integrator and Computer): Completed in 1945, ENIAC was one of the first electronic general-purpose computers. It was designed to calculate artillery firing tables for the United States Army during World War ...

Computer Basic

  The word “computer” comes from the word “compute”, which means to calculate”. Charles Babbage is known as the ' Father of computer' .  A computer often referred to as a “data processor” because it can store, process, and retrieve data whenever desired.  The activity of processing data using a computer is called data processing.    Data processing consists of three sub activities:- (1)          Capturing input data (2)          Manipulating the data and (3)          Managing output results. Data : - Data is raw material used as input to data processing. Data can be anything like numerical, non-numerical or a mixture of both. Information : - Information is processed data obtained as output of data processing. Computer: - A computer is an electronic device which performs numerical calculation and logical calculation at hig...

Office Package and Features of Office Package

Most of the official jobs today are dependent on computers. Computer helps in accomplishing different types of official tasks with the help of 'Office Package'. With the help of 'Office Package ' to accomplish basic tasks like typing and composing letters, doing calculations and comparisons, manipulation data and generating multiple types of reports, making presentation for demonstration, seminars etc.   For example: MS Office, OpenOffice, etc. Office package includes the following applications: 1. Word Processor:  A word processor is a type of application software that enables to create a documents by enabling to type text, insert page number, header, footer, edit, modify , and to take print or save documents in soft copy for future use.   2. Spreadsheet:   A spreadsheet package is an application software that stores data in an organized way and help to  analyse, calculate, compare the data or values. It also enables to present information in graphs, pie c...