Editing One-instruction set computer (section)

{{Short description|Abstract machine that uses only one instruction}}
{{Distinguish|1-bit computing}}
A '''one-instruction set computer''' ('''OISC'''), sometimes referred to as an '''ultimate [[RISC|reduced instruction set computer]]''' ('''URISC'''), is an [[abstract machine]] that uses only one instruction{{snd}}obviating the need for a [[machine language]] [[opcode]].<ref name=urisc /><ref name=caamp /><ref name=agut /> With a judicious choice for the single instruction and given arbitrarily many resources, an OISC is capable of being a [[universal computer]] in the same manner as traditional computers that have multiple instructions.<ref name=caamp />{{rp|55}} OISCs have been recommended as aids in teaching computer architecture<ref name=urisc />{{rp|327}}<ref name=caamp />{{rp|2}} and have been used as computational models in structural computing research.<ref name=agut /> The first [[carbon nanotube computer]] is a [[1-bit computing|1-bit]] one-instruction set computer (and has only 178 transistors).<ref>{{cite web | url=https://www.bbc.co.uk/news/science-environment-24232896 | title=First computer made of carbon nanotubes is unveiled | publisher=BBC | date=26 September 2013 | accessdate=26 September 2013}}</ref>