[en] CUTLASS is the CEBG's standard real-time software system for power station applications. It is arranged as four distinct, user orientated languages, any combination of which can be used for a particular application: a DDC language, a Sequence language, a VDU language, and a General Purpose language. All of these languages are supported by a set of Common Language Components. These provide all the standard high-level software facilities - arithmetic and logical manipulation, If statements, For Loops, Sub-Routines, etc.; also in the CLC are high-level statements through which CUTLASS code communicates with proprietary Input/Output hardware. The Common Language Components do not constitute a separate, usable language, so the General Purpose language is often used as a medium for utilizing the facilities provided by the CLC. The DDC language is discussed