14 Dec
2016
14 Dec
'16
3:54 a.m.
Noel Chiappa wrote:
A reasonable guess, and one I'd make too. But I don't know either.
Supposedly, many ITS backups were made to 7-track tapes. That became a
problem when the old tape drives started to fail, and available new tape
drives were only 9-track.
9-track tapes
on the PDP-10 used one of the following encodings:
What about 7-track, any idea? I would assume 6 x 6-bit tape frames per
36-bit word, but that's just a guess.