> [mailto:[log in to unmask]] On Behalf Of Mark J. Reed > On Sat, Mar 1, 2008 at 5:40 PM, <[log in to unmask]> wrote: > > One problem with light pens was that they needed light. Back then, > > most monitors were still monochrome. > > The Apple ][ had a black/greenscreen display, sure. But the > Commodore and Atari 8-bits had color displays, typically on a TV, with > default screen colors that didn't include black, and some light even > when a pixel was changed to black. Yeah, Apples were the high-end of the home market so there weren't too many users using televisions as the primary monitor, especially since they didn't come with RF-modulators as standard equipment. Color monitors were still a bit expensive back then so green, amber or plain black-and-white were very common. BTW: I lost all my recent e-mail in the HD crash. Are you still having a meet in Atlanta this month?