C is a medium-level programming language invented by Dennis Ritchie around 1973 at Bell Laboratories. Created to be the implementation language for the UNIX operating system, C went on to become one of the most widely-used programming languages worldwide in the 1980's, having been gradually supplanted for applications development both by its offspring C++ and Java and by scripting languages such as Perl, Python and PHP, the latter being the language that Moodle itself is written in.

» Moodle Terms