LAMP stack

(pronounced: lamp stack)

The acronym LAMP refers to the first letters of Linux, Apache, MySQL, and PHP (or Perl or Python) which compose a solution stack made of free and open source software, suitable for building robust, dynamic web sites.

The actual bundle is usually:
    Linux - the operating system;
    Apache - the web server;
    MySQL - the database management system;
    PHP, Perl, or Python - the scripting languages.

See also : you're good  SQL  
NetLingo Classification: Net Programming