Telnet is an old client server TCP/IP protocol that allows for clear text remote access to a shell. Because everything is sent in clear text it is really no longer used, instead we use ssh client and server.
(You can do this on any Linux box and if you must use windoze there is nothing I can do to stop you)
The protocol still exists and can be used for sh1ts and giggles:
Open a terminal and type the highlighted part:
NYAN Cat!
telnet nyancat.dakko.us
ASCII Star Wars (an IPV6 version is available too) (You can see the same thing via a web browser here http://www.asciimation.co.nz/)
telnet towel.blinkenlights.nl
BOFH Excuse Engine, don't forget the 666,:
telnet towel.blinkenlights.nl 666
If you want to try some old BBS & MUDs there are a few here http://www.telnet.org/htm/places.htm
and here http://www.telnetbbsguide.com/ or ask google.
