30 Dec
2004
30 Dec
'04
2:53 a.m.
At 05:42 PM 12/29/2004, Tony Duell wrote:
No, it's a VT100 with a 'function
generator' board in it. This board adds
the ability to plot mathematical functions -- for each column of the
display (that's dot column, mot character column), you can set store 2 Y
values.
Incidentally, a VT55 is a VT52 with a similar graphics display capability.
Ah, my first real introduction to computer graphics. I tried very
hard, in BASIC, to write a library of routines to draw small
numbers of arbitrary lines using that two-dot-vertical graphics mode.
Those dots were so nice and small compared to character-oriented graphics.
- John