At 15:08 -0800 on 02/20/2007, Charles Mills wrote about Re: IBM S/360
series operating systems history:
TOS was a piece of work! Every time you linkedited a program (all executable
programs in DOS/TOS in those days lived in SYSRES) it copied the SYSRES from
tape to tape, kind of like a "good old days" update of the customer master
file.
And the first thing you then did was run a copy or two of the new
SYSRES Tape. I seem to remember that the life time of the media that
was used to hold the SYSRES was about a month or so (it wore out from
all the constant back-and-forth movement). You had to trace the
amount of usage it got so you could replace it with one of the copies
before it totally wore out.
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
