Here You can download one of the best desktop Linux distributions - Fedora. This is release 9.
Here You can find credentials required to login:
Local user: tom
Description from Wikipedia:
Slackware is a free and open source operating system. It was one of the earliest operating systems to be built on top of the Linux kernel and is the oldest currently being maintained. Slackware was created by Patrick Volkerding of Slackware Linux, Inc. in 1993. The current stable version is 14.