Here is a collection of the key terms regularly used in Moodle. Best to learn them now. It will assist your future learning a use of Moodle. One can't learn the concepts without first understanding the words.
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MOO - LambdaMOO Server
LAMP, a free open source software solution stack, Linux (as OS), Appache(as a web server), MySQL (as a DBMS server), either PHP, Perl or Python (as a Scripting Language).
Lightweight Directory Access Protocol -
is an application protocol for modifying directory services. It is commonly used for user and computer directories for domains.
The Lesson module in Moodle allows a series of pages to be entered. Each page can have a question at the end, and depending on the answers a student gives can lead them to any other page. (discussion)