16 Dec
2015
16 Dec
'15
7:57 a.m.
On Dec 15, 2015, at 10:10 PM, Chuck Guzis <cclist
at sydex.com> wrote:
On 12/15/2015 01:48 PM, Dave Wade wrote:
IBM standard labels are older than ANSI. Then again, IBM (in OS/360 at least) had
something they called "ANSI label" that were not actually ANSI at all. They
used "8 bit ASCII" which was a bizarre code created from standard 7 bit ASCII by
moving one or two of the bits (bit 6 to bit 7? I don't remember).
paul
What I meant was are they still on 9-track, or
some kind of
tape-in-a-file disk? IBM tapes are usually written to AWS format
files not the formats (.TAP ?) used by SIMH... Some source to extract
some versions of these from AWS files (and windows executables) are
in this ZIP file:-
Came right off a 1600 cpi tape, identified as a CMS dumpfile.
What really strikes me as odd, is that ANSI/IBM tape labels were pretty much the standard
rule of thumb then; why the heck did IBM invent something new and obscure?