LINUX
Named after coinventor Linus Torvalds
A powerful operating system running on at least 10 million computer systems worldwide. Major companies, including IBM Corp., Oracle Corp., and Lotus Development Corp. have begun making their products Linux-compatible.
http://www.linux.org/

PERL
"Practical Extraction and Report Language"
A programming language designed for quick, easy creation of software "scripts" that can control the functions of Web pages. Thousands of Web sites use Perl scripts to manage page functions.
http://www.perl.com/

APACHE
"A Patchy Server"
Web server software that distributes web pages to browsers on the Internet. Well over half of the world's web sites use Apache as their server software.
http://www.apache.org/