LAN, WAN, and MAN are different types of computer networks. LAN (Local Area Network) connects computers within a single building or campus through a single cable. WAN (Wide Area Network) spans a large area like a country and connects hosts through transmission lines and switches. MAN (Metropolitan Area Network) covers an entire city and is a larger version of a LAN, using similar technologies.

1. LAN, WAN, MAN

2. LAN(Local Area Network)
• It is privately-owned network within single building or
campus of up to a few kilometres in size.
• They are widely used to connect computers and workstations
in company offices and factories to share resources and
exchange information.
• LANs are easy to design and troubleshoot.
• In LAN, all the machines are connected to a single cable.
• Different types of topologies such as Bus, Ring, Star and Tree
are used.

3. • Earlier the data rates for LAN range from 4 to 16 MBPS.
• Now, speeds are normally 100 or 1000 MBPS.
• They exist in limited geographical area.
• Connectivity and resources, especially the transmission media,
usually are managed by the company which is running the
LAN.

4. WAN(Wide Area Network)
• WAN, spans a large area, often a country or continent.
• It contains a large collection of machines intended for running
user programs. These machines are knows as Hosts.
• These hosts are connected by a communication subnet.
• In most WAN, the subnet consists of two distinct components:
transmission lines and switching elements.

5. • The communication between different users of WAN is
established using leased telephone lines or satellite links and
similar channels.

6. MAN(Metropolitan Area network)
• MAN covers a city. The best known example of MAN is the
cable television network available in many cities.
• A MAN is basically a larger version of a LAN and normally
uses similar technology.
• It covers a large geographical area and may serve as an
ISP(Internet Service Provider).
• It is costly and may or may not be owned by single
organization.

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