The web server www.cs.gordon.edu is a 66MHz 486 running a recent version of Linux. Linux is a Unix-like operating system that is freely available on the Internet. It is very stable and is widely used for servers.
The web server software itself is Apache. This is a free program that was originally based on the NCSA server that was common in the mid 1990's.
Another name for our web server is linus.cs.gordon.edu. Linus also is also an AppleShare server, meaning that it possible to access files there from an Apple computer.