AIX genesis

Posted Jun 6, 2003 2:32 UTC (Fri) by ConradM (guest, #11669)
In reply to: A look at the SCO complaint by alonzo
Parent article: A look at the SCO complaint

There are (or were) more than one "AIX" source bases... In 84-86 I
worked at IBM on the first one. It was an IBM-enhanced port by
Interactive Systems Corporation of ATT System V to a virtual machine
(VRM) on the RT PC. That would be the original System V,
sometimes referred to as release zero, back when the man pages
were a still a single volume - Jan 1983 is the date on mine. SVR2
stuff got pulled in later.

By the way the RT PC had little in common with an Intel PC: just that
there was an 80286 coprocessor option, and it had PC compatible 8
and 16 bit I/O slots... beyond that it was simply the first RISC ala IBM
architecture out the door - a single chip big endian commercialization
of IBM Research's "801".