This document defines and describes different types of computer networks. It explains that a network is an interconnected collection of autonomous computers. It then defines local area networks (LANs), metropolitan area networks (MANs), wide area networks (WANs), and the international network known as the Internet. The document also provides brief descriptions of LANs, MANs, WANs, topology, ring topology, star topology, and bus topology.

2. Network
It is an interconnected collection of
autonomous computers.

3. •Local Area Network (LAN)
•Metropolitan Area Network
(MAN)
•Wide Area Network (WAN)
•International Network (Internet)

4. LAN
Local Area Network is a small network
confined within a building or a small
area.

5. MAN
Metropolitan Area Network is a network
spread within a city or in an area of radius
of 10 kms.

6. WAN
Wide Area Network is a network spread
across cities, countries, continents etc.

7. INTERNET
International Network is a network of
networks.

8. TOPOLOGY
It refers to the physical layout of computers
within a network.

9. RING TOPOLOGY
Connection of computers in circular form.

10. STAR TOPOLOGY
Connection of computers in which all the
computers are connected to a central hub.

11. BUS TOPOLOGY
Connection of computers in linear form.