Ah! Mea culpa. You said what I quoted twice, the first time with the qualifier about the loader. In my haste I saw only the second.
I think there may have been some other subsetting also. For example, I suspect there was no problem program disk support either. (No "QSAM.") We're on the same page -- same OS but with a tape SYSRES. 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. I don't recall if TOS supported overlay structures. That is not an idea whose time has come: loading overlay segments from tape. Charles P.S. Aren't we supposed to be avoiding quoting peoples' e-mail addresses? -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Shmuel Metz (Seymour J.) Sent: Tuesday, February 20, 2007 12:53 PM To: [email protected] Subject: Re: IBM S/360 series operating systems history In <[EMAIL PROTECTED]>, on 02/19/2007 at 12:11 PM, Charles Mills <[EMAIL PROTECTED]> said: >Only if a tape is essentially the same as a disk! The loader, library routines et al are only a tiny fraction of the code base. >but the SYSRES was on tape! Isn't that what I wrote? "with a tape loader instead of a disk loader." ---------------------------------------------------------------------- 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
