R.S. wrote:
Even some mainframe programs interpret it as data, with funny effects
somtimes. For example SYSIN DD * for FTP program cannot contain the
numbers. AFAIK some TCPIP config files as well.
AFAIK the sequence numbers are completely useless nowadays. It was used
for punched card sorter. Is there any other application ?
they were also used for a long time as part of the cp67/cms multilevel
source update infrastructure (later vm370/cms). since it was the
pervasive internal platform for a long time ... even some number of mvs
components would be start life with cms multilevel source update and
then have to morph to smp for external release (there were some
folktales of mvs components having periodic difficulty converting their
cms source development and maintained environment to smp as part of
customer ship).
in vm/cms ... before the oco-wars, not only did source ship as standard,
but maint. was done by shipping the source changes.
recent thread that started out discussing card sorting but drifted into
description of cms multi-level source update:
http://www.garlic.com/~lynn/2006n.html#45 sorting
