14 Dec
2020
14 Dec
'20
6:28 a.m.
On Dec 14, 2020, at 9:26 AM, emanuel stiebler via
cctalk <cctalk at classiccmp.org> wrote:
On 2020-12-14 05:41, Brent Hilpert via cctalk wrote:
I wondered too. General overstrike requires a bitmap display, or some sort of persistent
display. Paper is an example; a Tek 4010 would also handle overstrike since it uses a
storage tube. And PLATO terminals did overstrike just fine since they are bitmap displays
with per-pixel memory.
paul
On 2020-Dec-14, at 1:26 AM, ben via cctalk
wrote:
Is it really an overstrike? They look simply like different characters.
At least, I didn't (probably missed it) how they can be generated out of
the available ones... Often for data input one could use over strike
characters for input. Not EQ might be = BS | Did any video display terminals
repeat the same effect?
Yes. Coincidentally I've just been refurbishing one - a Teleray 3931.
It's an ASCII/APL terminal, overstriking was included for the APL mode.
http://madrona.ca/e/teleray3931/index.html
Note the screenshots in APL mode.