Yep, it was an IBM 370-165 that was field upgraded to a 370-168 by including a DAT box. I never heard of them being a "7s", like a 167. But I do recall there was a distinction between a factory delivered 168 and a field upgraded 168. But the labeling on top of the light display, said "IBM 370-168". (obviously, that was upgraded from saying "IBM 370-165".
Tom Duerbusch THD Consulting >>> [EMAIL PROTECTED] 10/9/2006 12:57 PM >>> As I recall, the main memory was 512K. Additional memory was $1M per MB. Wasn't the 8-series delivered with the DAT. The non-DAT boxes were 5s (145, 155, 165). When they were upgraded to DAT, they became 7s. Regards, Richard Schuh > -----Original Message----- > From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] > Behalf Of Tom Duerbusch > Sent: Monday, October 09, 2006 10:31 AM > To: IBMVM@LISTSERV.UARK.EDU > Subject: Re: Real core > > > The number I remember, but, if pressed, I wouldn't know all the > specifics on what it ment was... > > IBM 370/168.... $1,000,000 per MB. > We had a 4 MB 168 which cost us a cool $6 million dollars. > But I think > that $6 Million was without a DAT box as the box was field upgraded > later to support virtual memory. > > I say I don't remember all the specifics.....because I wasn't in those > meetings. > But I was a "viewer" of the specifications of the replacement box (I > think it was an IBM 3083...didn't that come before the IBM > 3030 line?). > It was, initially, a week long process with IBM detailing how > you wanted > your mainframe built. Do you want floating point registers? > How many? > Here is what they cost... So memory wasn't as simple as, "I > want 4 MB". > It had to include "cabinets" and "wiring" and lights on the > console for > addressing. Not to forget, water cooling considerations and power > units. The IBM would come back in a week or two, to say if you wanted > "xxx" then we need to add in "yyy" and "zzz" and the cost is $$$. Or > you can't have both "aaa" and "bbb". It seemed to take over > a month to > finally spec out what you wanted to order. > > So I assume that the $1 million per MB also included all the extra > hardware that may or may not be necessary, depending on which megabyte > increment it was. > > Tom Duerbusch > THD Consulting > > >>> [EMAIL PROTECTED] 10/7/2006 11:07 PM >>> > Ok, this is obscure to the max, but: ISTR real core costing $1/byte. > Someone else says: > "$1 a byte was extrordinarily cheap for 1971. Ferrite core was going > for up to $2 per BIT." > > Of course, he then goes on to talk about PDPs, so maybe he's talking > about core made in Maynard instead of Mexico... > > Anyway: do any of the other old-timers remember anything about this? > > -- > ...phsiii > > Phil Smith III > (703) 476-4511 (home office) > (703) 568-6662 (cell) >
