At 11:10 PM 10/7/98 +0100, Tony Duell wrote: Hmm, this is bringing back memories. The VT55 also had a weird graphic mode that gave two scan-lines of pixels that could be positioned vertically, right? This was interesting for drawing line graphs. I remember accessing these from BASIC on a PDP-11/03 in high school. I think I tried to write a subroutine library that would allow me to draw arbitrary lines on the screen by dithering the pixels of lines that were located in the same columns. - John