Nominal Semidestructor

Nominal Semidestructor

(abuse)Slang for "National Semiconductor", found amongother places in the 4.3BSD networking sources. During thelate 1970s to mid-1980s this company marketed a series ofmicroprocessors including the National Semiconductor 16000and National Semiconductor 32000. At one point early in thegreat microprocessor race, the specs on these chips madethem look like serious competition for the rising Intel 80x86 and Motorola 680x0 series. Unfortunately, the actualparts were notoriously flaky and never implemented the fullinstruction set promised in their literature, apparentlybecause the company couldn't get any of the mask steppingsto work as designed. They eventually sank without trace,joining the Zilog Z8000 and a few even more obscurealso-rans in the graveyard of forgotten microprocessors.