[TUHS] Other POSIX Candidates?

Peter Weinberger (温博格) via TUHS tuhs at tuhs.org
Tue Aug 6 23:29:20 AEST 2024


and the folks from PARC wanted a more RPC-based open OS, according to
my not-yet-fully-retrieved memories.

On Tue, Aug 6, 2024 at 2:40 AM <arnold at skeeve.com> wrote:
>
> segaloco via TUHS <tuhs at tuhs.org> wrote:
>
> > Another way to put it would be as a chicken and egg, which came first, ...
> > ..., or the ongoing need for UNIX standardization finding sponsorship
> > by the working groups, IEEE, etc.?
>
> This.
>
> Try to understand what things were like at the time. There were
> a ton of competing Unix systems, all different:
>
> - IBM: AIX on the mainframe and PS/2, which were different from
>   AIX on the RT/PC and later RS/6000 (workstations).
>
> - DEC: Ultrix on minicomputers and microvaxen, and later on MIPS
>   based workstations
>
> - Data General: DG/UX on their minicomputers.
>
> - Pyramid: A BSD/System V hybrid RISC minicomputer
>
> - Sun: Workstations, 680x0 based and later SPARC based, and servers.
>   Initially BSD based, later SVR4 based.
>
> - Workstations from HP, Tektronix, NBI, others I've probably forgotten,
>   3B2 and 3B1/Unix PC from AT&T... The list goes on and on and on.
>
> Things split roughly along BSD/System V lines, but code wasn't portable.
> Did you use bcopy() or memcpy()? index() or strchr()? There was lots
> of mixing and matching happening, too.
>
> There was a crying need for a standard. The mess is what begot GNU
> Autoconf, which made a difference at the time. Having the ANSI C standard
> also helped.
>
> HTH,
>
> Arnold


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