Re: Blech! How can you stand 640x200??

["Roger Johnstone" <rojaws@mac.com>]

----------
In article <3a4bc9c4.54267761@news.wi.centuryinter.net>, 
mister_boffo@hotmail.com (Mr. Boffo) wrote:
>
> Ah, yes, I recall seeing this on an Amiga, where the screen was an
> NTSC monitor and the resolution required 60hz interlacing. A single
> horizontal line has terrible flicker, unless made to be two lines
> thick, so there's no real gain from the extra resolution. (sigh)
>

There were special monitors with long-persistence phosphers which solved the
flicker problem. Unfortunately, they then caused any movement on the screen
to smear, which is why those interlaced modes were very rarely used.

When the Mac II and IBM VGA were intoduced in 1987 they used hi-res RGB
colour monitors capable of 480 lines. But the cost! Even in 1990 a cheap VGA
card and monitor cost US$500. In 1987 it was several times that.


p.s. It's summer here, over the last fortnight the temperatures have been in
the 18-22C range, but now it's raining heavily, so maybe the fire will be
lit after all :-)

Merry Christmas, happy holidays!

--
Roger Johnstone, Invercargill, New Zealand

Apple II - Future Cop:LAPD - Warcraft II
http://homepages.ihug.co.nz/~rojaws
______________________________________________________________________
from the Bottom episode "Holy"
Richie:Now look, we've got guests coming remember, so I'd better get on
       with my turkey.
 Eddie:What're ya going to do with it?
Richie:Well, it's the season of good will and peace on earth so I thought
       I'd chop both its feet off, rip out its innards, strip it, shove an
       onion up its arse, and bung it in a very hot place for four hours
       until it's completely burnt.