Widely used systems development language, also block-structured, but with more facilities to control the machine at the level of the hardware.

n. A language used to develop software applications in compact, efficient code that can be run on different types of computers with minimal change.

The source languages from which an interpreter is competent to interpret professionally. Interpreters may have several C languages.

This is a programming language developed in the late '70s. It became hugely popular due to the development of UNIX, which was written almost entirely in C. C was written by programmers for programmers and it lets you write code in ways that more structured languages do not.

A high level programming language used by factory software writers. Soon to be used as: the main language in a major dedicated music-computer.

A language that a translator or interpreter can read and understand well enough to translate out of, but cannot write or speak well enough to translate or interpret into. (See also -A language and -B language.)