Basic of Computer Network

Basics of Computer Network

 What is Networks:- A Network is a group of two more computers. which are linked to each other that enables the computer to communicate with another computer devices and share their applications and data.

A Computer network can be categorized by their size. A computer network is mainly of Five types:

LAN:- LAN Stands for Local Area Network.

•  Local area network is used to network computers within a limited area like office, school by using the network media. 
• It is used communication medium such as twisted pair, coxial cable, etc.
• It is provides higher security.

Local area network

 CAN:- CAN is Campus area network 

• Campus area network is an interconnection of local area network within a limited geographical area.
• Campus network can be additional to the set of wireless connection connect several buildings to the same network, but it's not the same thing.
• A CAN is smaller than a wild area network 
• Example:- Corporate office compus, university etc. have interconnected administrative buildings.

Campus area network

 MAN:- MAN means Metropolitan area network

•  Metropolitan area network is a network, network optimized for a larger geographic area than a LAN, Ranging form several blocks of buildings to entire city.
• The most widely used protocols in MAN are RS-232, Frame Relay, ATM ISDN etc.
• MAN is used in communication between the banks in a city, Airline Reservation, College within a city.

Metropolitan area Network

WAN:- WAN is Wide Area Network 

• Wide area Network is a network connection of wide area such as the world.
• It is a network that extends over a large geographical area such as states or countries.
• This network is not limited to a single location. but it range over a large geographical area through a telephone line,satellite links,fiber optic cable etc.
• This network is used in Mobile Broadband, Private network.

Wide area Network

PAN:- PAN stands for personal area network

• Personal area network which is referred to the interconnection of information technology devices mostly up to 10 meters. 
•  These interconnected devices might include laptop computers, mobile phone, printers or other computer devices.  It is also know as a wireless personal area network (WPAN)

1. WPAN:-  

• it is developed by simply using wireless technologies such as WiFi, Bluetooth.
• It's network range low.