The document discusses different types of computer networks including LAN, WAN, and MAN. A LAN covers a small area like an office and connects computers within close proximity at speeds up to 1 Gbps. A WAN spans larger distances, connecting computers across cities and countries at slower speeds between 56 Kbps to 50 Mbps. A MAN connects LANs within a city and is larger than a LAN but smaller than a WAN. It provides higher data speeds than a WAN over its coverage area.

2. CASPAM
Topic: Computer Networks
Submitted by: Kainat Fatima
Submitted to: Sir Shahzad
Roll no: BSM-16-16

3. Contents
 Computer Network
 Types of Computer Network
 LAN (Local Area Network)
 Advantages of LAN
 Disadvantages of LAN
 WAN (Wide Area Network)
 Advantages of WAN
 Disadvantages of WAN
 MAN (Metropolitan Area Network)
 Advantages of MAN
 Disadvantages of MAN

4. Computer Networks
A computer network is a set of
computers connected together for
the purpose of sharing resources.

5. Types of Computer Networks
1) LAN – Local Area Network
2) WAN – Wide Area Network
3) MAN – Metropolitan Area Network
4) PAN – Personal Area Network
5) VPN – Virtual Private Network
6) CAN – Campus Area Network

6. LAN (Local Area Network)
 Covers a small area.
 Connects computers within one office or
building.
 Speed is typically 10Mbps to 1000Mbps.

7. Node
A node is an individual computer
on a network.

8. Wireless LAN
A LAN that uses no physical
cable.

9. Advantages of LAN
 Resource Sharing
 Communication
 Application Sharing
 Centralized IT Admin
 Centralized Data
 Internet Access Sharing
 Data Security & Management

10. Disadvantages of LAN
 Privacy Threat
 Expensive to Install
 Admin Time Required
 Data Security Concerns

11. WAN (Wide Area Network)
 Covers a large
area.
 Connects
computers in
different cities &
countries.
 WAN is Expensive.
 WAN is not as fast
as LAN.
 Transmission rate
is 56 Kbps to 50
Mbps.

12. Advantages of WAN
 Communication Facilities
 Remote Data Entry
 Centralized Data
 Entertainment

13. Disadvantages of WAN
 Hardware, Software & setup Costs.
 Hardware & Software Management
Costs.
 Data Security concerns.

14. MAN (Metropolitan Area Network)
 Covers area of city.
 Larger than LAN but smaller than WAN.
 Connects two or more LANs in city.

15. Advantages of MAN
 Cover Large Area.
 Higher Data Speed.

16. Disadvantages of MAN
 Expensive.
 Difficult to Maintain.

17. BASIS LAN MAN WAN
Full Form Local Area Network Metropolitan Area
Network
Wide Area Network
Range A communication network
linking a number of stations
in same local area. Range is
1 to 10 km
This network shares the
characteristics of packet
broadcasting networks.
Range is100 km
A communication network
distinguished from a Local
Area Network. Range is
Beyond 100 km
Media Used Uses guided media Uses guided as well as
unguided media
Uses unguided media
Speed A high speed i.e. 100kbps
to 100mbps
Optimized for a large
geographical area than
LAN.
Long distance
communications, which may
or may not be provided by
public packet network.
Cost cheaper costly expensive
Equipment
needed
NIC, switch and hub Modem and router Microwave, radio, infra-red
laser
protocols Attached Resource
computer network
(ARCNET), Token ring
Frame relay and
asynchronous transfer
mode(ATM)
ATM, FDDI, SMDS