Re: Laser 128 - questions...

[Roger Johnstone <rojaws@orcon.net.nz>]

In <BC9DE5BA.9DAF%mpender@hotmail.com> M. Pender wrote:
> On 4/10/04 5:36 PM, in article BC9DE10D.9D87%mpender@hotmail.com, "M.
> Pender" <mpender@hotmail.com> wrote:
> 
>>> : - removal of the QHR graphics
>>> 
>>> *WHAT* QHR?
>> 
>> Quad-High resolution graphics.  IIRC it was like DHR, but with twice 
>> as many pixels across the horizontal dimension.  Of course, since 
>> none of the Apple software of the time used the mode, one might well 
>> question why the folks at Laser bothered.
> 
> I was wrong; DHR was the 560x192 graphics mode, QHR was the 560x384 
> graphics mode.  Thus, it doubled the graphics across the vertical 
> dimension, since it was a step-up from DHR graphics which already 
> doubled the horizontal resolution. 
>
> - Mike

I remember seeing the higher resolution mentioned in ads. Presumably it 
produced an interlaced picture though so it could be used with a regular 
monitor. I think the Apple III (or III+) could produce the same 
resolution.

I know the Amigas had a 640x400 interlaced mode, but it was rarely used 
because of the flickering display it produced unless it was used with a 
long-persistance monitor, so it's not surprising the Laser dropped it.

The older Laser 3000 had a graphics mode called RGB, which was the 
standard 280x192 Apple resolution, but with 8 real colours, and no 
colour limitations. It suffered the usual problem of no software support, 
but at least it was supported by the Laser's BASIC, so could easily be 
used from the owner's own programs.

-- 
Roger Johnstone, Invercargill, New Zealand
http://homepages.ihug.co.nz/~rojaws/
________________________________________________________________________
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