Types of Computer Networks 

Computer networks ko unki size (range) aur area cover karne ki capacity ke basis pe 4 main types mein divide kiya jata hai:

1. PAN – Personal Area Network

2. LAN – Local Area Network

3. MAN – Metropolitan Area Network

4. WAN – Wide Area Network

1. PAN – Personal Area Network

 Kya hota hai?

PAN ek chhoti si network hoti hai jo ek single person ke aas-paas ke devices ko connect karti hai. Range usually 10 meter ke andar hoti hai.

 Example:

• Mobile phone se Bluetooth earphones connect karna

• Laptop se printer ya wireless mouse connect karna

 Diagram:

 

 Key Points:

• Chhoti range

• Ek person ke devices ke liye

• Bluetooth, USB, Wi-Fi use karta hai

2. LAN – Local Area Network

 Kya hota hai?

LAN ek network hota hai jo limited area mein devices ko connect karta hai jaise ki:

• Ek office building

• College ka computer lab

• School network

 Example:

College lab ke saare computers ek switch ke through connected hote hain.

 Diagram:

 Key Points:

• Chhota area cover karta hai

• Speed fast hoti hai

• Mostly Ethernet ya Wi-Fi use hota hai

• Sasta aur reliable hota hai

3. MAN – Metropolitan Area Network

 Kya hota hai?

MAN multiple LANs ko ek city ke andar connect karta hai. Ye generally large campuses ya institutions ke liye hota hai.

 Example:

• University ke alag-alag campuses city ke andar connected hain

• City-wide cable TV service

 Diagram:

 

 Key Points:

• Ek city ya town ko cover karta hai

• Telecom companies ya ISPs operate karte hain

• LANs ko fiber optics ya leased line se connect karta hai

4. WAN – Wide Area Network

 Kya hota hai?

WAN sabse bada network hota hai jo countries ya continents tak spread hota hai.

 Example:

• Internet khud ek bada WAN hai

• Ek multinational company ke India aur USA offices connected through WAN

 Diagram:

 

 Key Points:

• Bahut badi range cover karta hai

• Speed LAN ke comparison mein kam hoti hai

• Satellite, fiber optics, leased line ka use hota hai

• Setup aur maintenance mehenga hota hai

 Summary Table