IRIX 3.x was based on UNIX System V Release 3 with 4.3BSD enhancements, and incorporated the 4Sight windowing system, based on NeWS and IRIS GL.
IRIX 3.x была основана на UNIX System V Release 3 с расширениями 4.3BSD и использовала оконную систему 4Sight на базе NeWS и IRIS GL.