Re: Apple II GS Question

[spec@vax2.concordia.ca (Mitchell Spector)]

In article pubpc1@library.ucla.edu writes...

>Greg, I think you are correct.  I read several articles on the
>introduction of the GS and the GS team clearly state that they
>developed ADB.  Now they're rewriting history...Mac people are
>going around calling the GS a "proto-Mac" when in fact, the GS
>came later and so had improvements.

    I'm not so sure, according to Steve Weyhrich's Apple II History
guide (part 11, "The Apple IIgs" - continued) it reads the following
concerning ADB:

    "The Macintosh engineering group was at this time designing a
protocol for interfacing standard input devices, such as keyboards
mice, and graphic tablets. This protocol, called the "Apple Desktop
Bus", was first implemented on the Apple IIGS".

    If that information is wrong (which is possible, but unlikely
considering how well documented and researched the guide was) I
would be interested to know. Do you have any articles which go
against it? (You mention you do, but not where). I no more like
to see history told inaccurately than you do. :)

>This was also why I asked Mitchell about where he read that the
>GS has a low pass cutoff filter on the Ensoniq.  In countless
>debates with Amiga people (having used both computers), the Amiga
>folks would rally around the fact that THEY had such a filter and
>the GS did not and so supposedly have cleaned up sound.  Now it
>seems that somewhere, someone is writing that the GS has such
>a filter and that it is a disadvantage.

    I'm not making it up, if you own a copy of Addison Wesley's
Technical Introduction to the Apple IIgs, there's a reference to
it on page 25 (even look in the index, under 'L', printed there
clearly is "low-pass filter with DOC"). I've even confirmed it's
existence with several people, including Ian Schmidt, Henrik G.
and David Empson.

Mitchell Spector
spec@vax2.concordia.ca