Server
A server is a computer attached to a
network whose function is to provide (or
serve up) data or other resources to client
computers. A web server, for example,
sends web pages to the Internet when
asked for them by a browser. Other kinds
of servers you might encounter are email
servers (which manage email distribution),
application servers (computers that run
applications used by other computers),
and workgroup servers (which allow
multiple users to share data).