On 9/1/06, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
Did any of the
classic computers display in octal 0-7
rather than 3 lights per digit? Also what was the display
device?
Sure did. The obvious example is the PDP11/34 front panel, which used
7-segment LED displays.
I am pretty sure the PDP8/a used the same sort of display.
Yes. I have a PDP-8/a programmer's panel (LEDs and pushbuttons) - it
is native octal.
Of course, just to be different, there's an optional null job for
RTS-8 that counts from 0000
through 1111, 2222... 8888, 9999 by toggling between two numbers to
display 8888 and 9999 on an octal display. I can't remember the
numbers, but I'm sure it's easy to tell by wading through the RTS-8
source code.
-ethan