26 Oct
2013
26 Oct
'13
7:35 p.m.
On 10/26/2013 06:03 PM, Fred Cisin wrote:
On Sat, 26 Oct 2013, ben wrote:
Same here, with a light pen (I still have) from some mainframe graphics
console (fat thing with a coiled cord and a fiber-optic tip). I used a
white (P4) CRT--better than the long-persistence green stuff,but the
accuracy, while good enough for selecting letters on a text display, was
totally unsuitable for fine tasks like drawing.
The clumsiness of the whole affair made me give it up fairly quickly.
--Chuck
Did anyone ever USE a light pen?
Few.
Some (myself included) did so very briefly, just to try it.
And, the IBM MDA monitor had a long persistence phosphor (P39?) that
didn't work well with it.