His friend, El (VHDL) is a language describing hardware . Language VHDL for the first time by the US Department of defense in order to design and describe circuits, complex high-speed design was used . Then in 1987 by the IEEE (Association of Electrical and electronic engineers)in the form of standard IEEE 1076-1987 was presented. After a few years and do part the corrections, standard second, this language, under the title IEEE 1076-1993 at the disposal of the public was put .