AIX
From Computer History Wiki
| Ultrix | |
| File:AIX.jpg Logging into an AIX system | |
| Type: | Multitasking, multiuser UNIX |
|---|---|
| Creator: | IBM |
| Architecture: | IBM 386, RS/6000, IBM 370 |
| This Version: | 5.1L for RS/6000 |
| Date Released: | 1987 |
I just remember that IBM had someone do a port of SYSV to the PS/2, then it was later ported to the new POWER based RS/6000 platform, and even to the 370 mainframe.
As it remains now, it's a SYSVr3 based OS with many enhancements from BSD and Linux.