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From: valdesf@wanadoo.fr (=?ISO-8859-1?Q?Fr=E9d=E9ric_Valdes?=)
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Subject: Re: Progress on AdaOS
Date: Mon, 27 Aug 2001 09:46:57 +0200
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Date: 2001-08-27T07:46:57+00:00
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David Starner <dvdeug@x8b4e53cd.dhcp.okstate.edu> wrote:


> > 
> > Under that rule, there are no Macintosh users.
> 
> You think that Macintosh users don't realize that they're using a 
> Macintosh? I was talking about people who use the system through a
> specialized application. If it puts a whole GUI on the level of the
> Macintosh or Windows, then it wouldn't be hidden - unless it completely
> emulated the Macintosh or Windows GUI, in which it wouldn't be nifty.

Carbon applications works as well in mac OS 9 as in Mac OS X.

They are an example of typical mac applications that obey to the
guidelines of Apple. This kind of application is unique. 

It uses natively the multitask, the multithread and the executable
format is the same.

The differences between the two runtime environment are the presence of
the preemptively scheduled task and the protected memory in mac OS X and
the cooperatively scheduled task in mac OS 9.
It is the only difference. And both run at the same speed in the two
environment without a recompilation.

Mac OS X is a UNIX(rewritten on the base of freeBSD and NeXTStep) but
users still have the feeling they use a macintosh.

The only problem is that most of carbon procedures aren't reentrant. It
is the only problem. But mac OS 9 was a multiproc-able system.

There is an other problem: I don't know if Apple's gcc 3.0 can compile
Ada source with GNAT...

All my excuses for the bad english.

-- 
Ca fait bien longtemps qu'on croit aller loin.
Maintenant y'a des v�los dans les salles de bain...
-+- In Matmatah la Ouache -+-