Programming language
From Tardis Wiki, the free Doctor Who reference
Programming languages, or computer languages, were used by programmers to write computer code.
Melanie Bush was an expert at programming in FORTRAN, COBOL and BASIC. (AUDIO: The Juggernauts, Spaceport Fear)
While looking at the Narcissus' source code, Petronella Osgood noted that it looked like a combination of HTML, CSS, JavaScript and PHP. (AUDIO: Narcissus)
