1. How Telnet Works
1 . Telnet
2 . client/server model
3 . terminal emulation
4 . Telnet and Operating Systems

2. 1 . Telnet
The Telnet is an Internet resource that
lets you use the resources of a distant
computer somewhere else in the world.
From your own home or office, you can log
on to another computer, issue commands
just as if you were at that computer's
keyboard, and then gain access to all the
computer's resources.

3. 2 . The client/server
model
Telnet follows a client/server model,
which means that you run a piece of software
on your own PC(the client) to use the
resources of a distant server computer. The
distant computer is called the host.

4. 3 . terminal emulation
Telnet gives you a way to use those
menuing systems by using something called
terminal emulation. It lets you use your
computer to emulate the type of keyboard and
computer that that each of the different
computer system expect.

5. 4 . Telnet and Operating
Systems
Telnet clients are available for all the
major operating systems, including Unix,
Linux, Macintosh, and all versions of
Windows .

6. References
http://en.wikipedia.org/wiki/Telnet
http://my.safaribooksonline.com/0789736268