close, and it is the most widely used at
present a kind of network.
Instant communication system's
biggest function is the immediate
information exchange, just remember
their number, wherever he is, can chat
with his tools at any time through
communication. The system USES the C/S
mode construction, by the client and
server components. The server can be
deployed in the same nets section on any
node, so that it can be convenient
maintenance and ensure that the same
enterprise internal information security
III