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From: lapp@hppad.HP.COM (David Lapp)
Newsgroups: comp.os.os9
Subject: Re: Reposting : Need info about OS-9 !!
Message-ID: <5710004@hppad.HP.COM>
Date: 8 Nov 90 01:17:35 GMT
References: <4492@iitmax.IIT.EDU>
Organization: HP Panacom Automation Div Waterloo, Ont.
Lines: 19

> As far as I know, its closest relative is UNIX.  I am only familiar with
> OS9 "level II", implemented only on the Color Computer 3, as far as I know.
> At any rate, when it comes to inter-process communication (presumably you
> mean concurrently running processses, one has the choice of
> 1) signals (limited to a byte, or a word, depending on your system)
> 2) ram-disks or pipes
> 3) "get/put" buffers.

Actually "level II" OS9 was around for several years before the Coco III
It was implemented on SS50 bus systems made by Gimix and at least a few
other systems.

"get/put" buffers are pretty much CocoIII OS9 specific I'm afraid.

OSK (the 68000 version of OS9) does have other forms of IPC 
and there is also OS9000 which runs on iNTEL based systems.

Dave Lapp
lapp@waterloo.hp.com		Standard Disclaimer etc...