Network types:

The three basic types of networks include:
Local Area Network (LAN)
Metropditan Area Network (MAN)
Wide Area Network (WAN)
Local Area Network (LAN)
A Local Area Network (LAN) is a network that is confined to a
relatively small area. is a connection between devices near to each
other without using central office ex: Token ring, ATM
(Asynchronous Transfere Mode) up to 40 Gbps and Ethernet 10
Mbps. It is generally limited to a geographic area such as a writing
lab, school, or building. Rarely are LAN computers more than a
mile apart. In a typical LAN configuration, one computer is
designated as the file server. It stores all of the software that
controls the network, as well as the software that can be shared by
the computers attached to the network. Computers connected to
the file server are called workstations. The workstations can be
less powerful than the file server.
Metropditan Area Network (MAN)
A Metropditan Area Networks (MANs) is a connection between
group of LANs over a small area within city like cairo a central
office exist between LANs ex: ATM.
Wide area network:
Wide Area Networks (WANs) is a connection between group of
LANs over a large area also central office exist in between ex: FR,
ISDN, ATM(155 Mbps – 622 Mbps).