Net Things:

Ok to start with, things i am most familiar with. Unix, and then other items, like irc, hacks, etc...

Unix: Linux is a Operating system that originated from a educational operating system called minix. The base minix system was taken, and adapted and advanced by Linus Torvalds for his own use, after a while, he released the first kernel of linux, which was soon advanced, and many people created their own linux distribution.

• Redhat Linux is the most commonly used software distribution.
• Debian Linux is a non profit software distribution put together by volunteers.
• http://www.linux.org is a information repository for the linux operating system.

Solaris is a Operating system written by Sun Microsystems for their own specific hardware.

Other Technologies, Just a brief list, with a aim to go in-depth later, Irc, TCP/IP, HTTP, FTP, RealPlay and other broadcast technologies.