[GreenKeys] Black tape

[Jim Haynes]

Well, now, 13/16 is more like 6-level tape, so could be one of the 
computers that used 6-level code, or some sort of typesetting application
that used Teletypesetter code but a much faster machine.  I'm not really
aware of the zoo of old computers that might have used 6-level tape.

On Thu, 18 Jun 2015, Duncan Brown wrote:

> The AWA Museum just received a couple of boxes of 13/16" oiled tape that is 
> BLACK.
> I assume black tape was used with an optical reader.  What 5-bit machines 
> used optical sensing??
> Was Black tape used anywhere else???
>
> Thanks,
>
> Duncan
> K2OEQ
>
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