Types of Network

🤔 What Do We Mean by “Types of Networks”?

Not all computer networks are the same.

Some networks:

• Cover a small room

• Some cover a building

• Some cover a city

• Some cover the entire world

📌 Based on geographical area, size, and purpose, computer networks are classified into different types.

🧭 Classification of Networks (Big Picture)

The most common classification is based on area covered:

1️⃣ PAN – Personal Area Network

2️⃣ LAN – Local Area Network

3️⃣ CAN – Campus Area Network

4️⃣ MAN – Metropolitan Area Network

5️⃣ WAN – Wide Area Network

We’ll understand each one slowly and clearly 👇

📱 PAN – Personal Area Network

A Personal Area Network is a network created around one person for personal devices.

📌 Coverage Area:

• Very small (1–10 meters)

🧑‍💻 Examples:

• Mobile phone connected to Bluetooth earphones 🎧

• Laptop connected to mobile hotspot 📶

• Smartwatch connected to phone ⌚

⭐ Features of PAN:

• Short range

• Low cost

• Easy to use

• Mostly wireless

📌 Technology used: Bluetooth, Infrared, USB

🏠 LAN – Local Area Network

A Local Area Network connects computers within a small geographical area.

📌 Coverage Area:

• Room

• Office

• Home

• School building

🏢 Examples:

• Office computers connected together

• College computer lab

• Home Wi-Fi network

⭐ Features of LAN:

• High speed ⚡

• Low error rate

• Privately owned

• Easy maintenance

📌 Technology used: Ethernet, Wi-Fi

🏫 CAN – Campus Area Network

A Campus Area Network connects multiple LANs within a campus or organization.

📌 Coverage Area:

• University campus

• Corporate campus

• Hospital campus

🏢 Examples:

• University with multiple departments

• IT company with many buildings

⭐ Features of CAN:

• Larger than LAN

• High speed

• Managed by a single organization

• Cost higher than LAN

🌆 MAN – Metropolitan Area Network

A Metropolitan Area Network covers a city or town.

📌 Coverage Area:

• Entire city

• Multiple buildings across city

🌍 Examples:

• City-wide cable TV network

• Government networks

• Internet service providers in a city

⭐ Features of MAN:

• Medium to high speed

• Covers large area

• More expensive

• Can be public or private

🌍 WAN – Wide Area Network

A Wide Area Network covers a very large geographical area, even countries or continents.

📌 Coverage Area:

• Countries

• Continents

• Entire world

🌐 Examples:

• Internet 🌍

• Bank networks

• Airline reservation systems

⭐ Features of WAN:

• Very large coverage

• Slower than LAN

• High cost

• Uses public communication lines

📌 Internet is the best example of WAN

🧠 Other Types of Networks (Additional Knowledge)

🌐 Intranet

• Private network within an organization

• Used by employees only

🌍 Extranet

• Part of intranet shared with external users

• Used by suppliers or partners

📊 Comparison Table (Quick Revision)

✍️ Definition

📌 Types of networks are classified based on the geographical area they cover, such as PAN, LAN, MAN, and WAN.

⭐ One-Line Summary

🔹 Different types of networks exist to connect devices over different distances, from personal devices to the entire world.