Although not about IBM mainframes, I think this article is interesting. It does touch, peripherally on why mainframes as a class continue to exist.
http://www.theregister.co.uk/2008/10/08/unisys_clearpath_kickers/ -- John ---------------------------------------------------------------------- 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