[Info-vax] Graphics cards and monitors, was: Re: VSI Software and Stark Gaming

[Paul Hardy]

Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP> wrote:
> On 2015-08-11, Paul Hardy <p.g.hardy at btinternet.com> wrote:
>> We at Laser-Scan also in the 1970s did very high resolution displays
>> (driven by PDP-11 and VAXen) - 140,000 by 100,000 addressable points, but
>> mainly into the two industries of security printing (banknote design), and
>> digital mapping.
>> 
> What physical screen sizes were these displays ?
> I wonder how they compare to the screens used in hospitals for looking
> at (for example) scans ?
> 
> I know they are higher resolution than normal monitors (at least
> according to consultants I've mentioned the subject to in the past) but
> I don't think they even begin to go anywhere near the above resolutions.
> Simon.

Screen of HRD1 was about a metre square, projected up from a postcard sized
film plane. Note that it was a vector display not a raster device, drawing
with a laser light spot bigger than the addressability, so only 10,000
lines resolvable - still ten times more than modern commodity displays! See
http://www.laser-scan.com/demo/laser-scan-history/. 

Regards

-- 
Paul at the paulhardy.net domain