Peer to Peer connection

* There is no dedicated server.
* no hierarchy among computers (all computers are in equal status)
* Each function,as both client ans server.
* usually no seperate administrator.security is provided by the local directory database on each computer.

Client/Server network

- Client (work station)

client computer make request for services or data on the
network from computer referred to other servers.

- Servers

computer that provided services to client computers

Several servers may be assigned to specific services.

ex :                file and print server
fax server

database server

mail server

Server :         + administrate the network (security,maintenance,.......etc )
                 + support large number of clients

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