Short name for Apache HTTP Server Project. This is the web server environment that Moodle was developed in, a freely downloadable Open Source product from Apache Software Foundation.
Gossip: The original name for Apache Server was "A patchy server", but cooler heads prevailed and named it Apache - didn't matter, it worked so well it celebrated its 15th birthday February 2010 and has been the Web's most popular server environment since April of 1996.
autonomous system (AS)
Probably the largest commercial competitor to Moodle, Blackboard recently purchased WebCT (10/21/05). Unlike Moodle, Blackboard is basically a commercial, closed source VLE.