Types of network...

Generally, It is three type.... 
1). LAN (local area network) 
2).MAN(metropoliton area network) 
3).WAN(wide area network) 

1) LAN stand for local area network... It is used in a small range area, like.. Building, office, factory, company, university, campus etc. It's maximum range 5 to 10 km. 
2)  MAN stand for metropolitan area network.. MAN is a combination of group of LAN. It connect one city to another city for sharing own resources.It's maximum range 50km to 100km.

E.g..   Suppose I am a business man...my company Or factory established in many city. So i want connect all companies from a same network for sharing resources.... Where we use MAN. 
 3). WAN stand for wide area network.. It also can say Internet and Internet is also known as www(world wide web). 
The range of WAN is whole country.. 

            Some other networks:  like.... 
1)PAN (personal area network) 
2)SAN (storage area network) 
 
PAN (personal area network) is a wireless network. It's maximum range in 10m to 50m.
SAN(storage area network) is also known as cloud computing... Bcz SAN is also stored data and cloud computing is also stored data. 



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