31 Jul
2026
31 Jul
'26
11 p.m.
On Fri, Jul 31, 2026 at 9:38 PM Rich Alderson via cctalk <
cctalk(a)classiccmp.org> wrote:
Bill Degnan via cctalk <cctalk(a)classiccmp.org>
writes:
I dont' know. I watched as Dave Gesswein ran them through his TU56. I was
able to load the pdp8 and pdp11 tape
images using simH, I have not
yet tried the pdp10 tape image. The TU56 is a universal drive and as I
underatand it (barely), and if I understand correctly the tracks of 00's
are ignored and/or are used to indicate what kind of system made them, 12,
16, or 18 bit. I am still learning about TU56 tape storage. Sorry I can't
provide a substantial answer to question
Bill
New TU56 Tape Images Available for simH use. I
will post updates on
this
thread, but if anyone is interested in messing
around with the images
using simH, feel free to download and explore/use.
Just out of curiosity, what is the internal format of these images?
Most especially, what is the internal format of the "18 bit" file?
<snip>