[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: coolness of GS/OS (was Re: any fix for OS9 Trash problem?)



In article <kindall-DE7651.01500004111999@news.mw.mediaone.net>,
Jerry Kindall <kindall@mail.manual.com> wrote:
>greg@apple2.com wrote:
>>Jerry Kindall <kindall@mail.manual.com> wrote:

>>> Well, the IIGS also _lacked_ certain important features that the 
>>> Mac had at the time, such as square pixels, a screen taller than 
>>> 200 scan lines, more than 16 colors,

Wasn't the Mac II the first color Mac, and didn't it post-date the release
of the Apple IIgs?

And if color is an argument point, the Apple ][ had color long before the
Lisa was even conceived.  (When was Lisa herself conceived?  Oh, um, I
guess that's a piece of too-personal information.)

Didn't the Apple I also do color graphics, or am I mistaken?

>> Um, only 16 colors per scanline, but 256 per screen easily, 3201 
>> possible with more effort, and I'd say up to 3216 distinct colors 
>> simultaneously is possible.  With stock hardware.  And there's the 
>> Second Sight video card to consider as well, developed long after 
>> Apple abandoned their flagship line.

> Well, with 200 colors and 16 per scanline, you'd be hard pressed to get 
> 3216 or even 3201 colors simultaneously.  ;)

200 scanlines, 16 per scanline, and scanline interrupts every 16 scanlines
to swap out the palettes for the next 16.  I've seen it done.  3201 from
also setting the border color, but it has been shown that one can also use
the scanline interrupts to change areas of the border with its fixed
palette, so... 3216 simultaneously displayed (if not simultaneously in
memory).

And mixed mode.  Each scanline could have 320 or 640 pixels individually. 
There is also a fill mode which does reduce the colors per scanline to 15
but allows one to fill regions with color by storing only a few pixels.

> Of course, Mac OS X will support multiple file systems, and being based 
> on Unix with a microkernel, I believe these will be extensible by third 
> parties.  If you wanna claim that as a IIGS "innovation" I would point 
> out that Unix had it long before the IIGS did.  ;)

GNO?

-- 
 --     ---                         <greg@apple2.com>
  --   -- -- ------------------------------------------------------------------
   -- --   ---             <http://www.war-of-the-worlds.org/>
    ---