On Sat, 2007-01-06 at 04:33 -0500, Ethan Dicks wrote:
On 1/6/07, Tore Sinding Bekkedal <toresbe at
ifi.uio.no> wrote:
The terminal when seen from the side was shaped
like an L, with the CRT
tube itself standing (in a plastic casing, of course) on the vertical
part of it. You could grab the CRT and twist it 90 degrees. The terminal
would send an escape code to the system, and the system would redraw the
screen with the altered aspect ratio.
Nice. More than just aspect ratio - somehow, hardware or software, it
would have to change how it renders its bits. I don't _think_ you can
arbitrarily exchange horizontal and vertical deflectors on a CRT, but
you could run a matrix transform on the bitmap in memory and change
all the drawing routines to swap axes without too much trouble, I'd
expect.
Yes, I believe that is what it did. Another bit of trivia was that it
was apparently very susceptible to burn-in.
On Tuesday
I'm going to a museum which has one of these...somewhere... -
I can try to get a picture of it, if you like.
Please do.
I'll do my best. No promises, though - not my camera.
-Tore :)