A Telnet Tutorial
Telnet allows you to remotely access a computer over the Internet. In other words, you can tell that computer to create, edit, execute and delete files just as if you were sitting at that computer.

Telnet Tutorial
Telnet is a program on most Windows computers that allows users to access another computer.

Telnet - Zen & the Art of the Internet
Telnet is the main Internet protocol for creating a connection with a remote machine. Where modems are limited, in the majority, by the quality of telephone lines and a single connection, telnet provides a connection that's error-free and nearly always faster than the latest conventional modems. Includes links to Publicly Accessible Libraries.

The Telnet Protocol
The Telnet protocol is often thought of as simply providing a facility for remote logins to computer via the Internet. This was its original purpose although it can be used for many other purposes.