The 3090 had a complete 4331 for a support processor.
Jeffry A. Kennedy Certco,Inc jkenn...@certcoinc.com 608-270-2385 -----Original Message----- From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Edward M Martin Sent: Monday, March 09, 2009 10:42 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Must be Friday: Mainframe USBs! I believe that the 3090 or something similar. It has been awhile since the CE and I talked about devices. Ed Martin Aultman Health Foundation 330-588-4723 ext 40441 -----Original Message----- From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Schuh, Richard Sent: Monday, March 09, 2009 11:22 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Must be Friday: Mainframe USBs! Which ones would those have been? Our 360/50 used punched mylar cards. Any kind of disk that was available at the time would have been physically too large to fit in the frame :-) Regards, Richard Schuh > Why not FBA? > > Oh, seems to me that some of the older high strength CPU's > used FBA devices to hold the microcode. > > Ed Martin > Aultman Health Foundation > 330-588-4723 > ext 40441
