IBM has had several Architectural Level Set points where there were
significant changes to the CPU that prevented earlier operating systems
from running on them.
What CPU's were involved with each level, and what was the real
underlying item changed on the CPU that forced a new level? (Let's keep
it limited to z990 and newer.)
Tony Thigpen
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
