IBM Z mainframe--summary writeup

[hanc...@bbs.cpcn.com]

IBM has a publication on its website describing the hardware and
operating system softwrae for its Z series mainframes. It takes an
introductory level and builds upon it. For non IBM users, or old time
IBM users, it answeres many questions about current technology.

http://www.redbooks.ibm.com/redbooks/pdfs/sg246366.pdf

The above is oriented toward Z/OS (nee 360-OS, MVS). There is another
publication oriented toward VSE (nee 360-DOS), the simpler operating
system.

[Quadibloc]

On Oct 26, 12:46 pm, hanco...@bbs.cpcn.com wrote:

> The above is oriented toward Z/OS (nee 360-OS, MVS).  There is another
> publication oriented toward VSE (nee 360-DOS), the simpler operating
> system.

Surely you mean OS/360 and DOS/360.

John Savard

[hanc...@bbs.cpcn.com]

In those days we simply called it "OS" or "DOS" (pronounced D O S). I
don't know if that was their official names or not, but everyone knew
what you were talking about. I only added the "360" to give it
context for the younger readers and to distinguish from PC-DOS.

To my surprise, the VSE writeup even acknowledged that DOS was
intended to be a temporary system until OS could be shrunken down
enough to run effectively and efficiently on machines with small
memory. To my surprise, a good deal of VSE looks just like my old DOS/
360.