On 11/24/2014 09:30 AM, Nims,Alva John (Al) wrote: > I am not sure what you are asking exactly for, but I do not think there are > any pictures of the units side-by-side, not even in the same room. > > IBM 7090: > http://ed-thelen.org/comp-hist/BRL61-0548.jpg > http://www-03.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP7090.html > > For the IBM 370MP, well that likes to bring up a DELL Heat sink > This is the Wikipedia entry for an IBM 370 > http://en.wikipedia.org/wiki/IBM_System/370 > > Physically, I believe the EC12's "Foot Print" is smaller, but much, much more > powerful in that small foot print. > One thing I would point out is that an EC box is Taller than the older boxes. > > > Al Nims > Systems Admin/Programmer 3 > Information Technology > University of Florida > (352) 273-1298 > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Ed Gould > Sent: Monday, November 24, 2014 12:17 AM > To: [email protected] > Subject: Box size comparisons > > Is there a picture available that shows say a 7090, 370MP (or close) and an > EC box? > This is just for size comparisons as its hard to visualize (to me). > > Ed
I haven't been able to locate any actual comparison images either -- would have to be from a museum or from someone with the skills to merge two images with correct scaling. If you want accurate comparisons, you may have to go to Physical Planning manuals for the older processors. The IBM 7090 had a much simpler architecture than even S/360. Even though it used much older technology than S/360 or S/370, the processor without peripheral devices was considerably smaller than any S/370 architecture MP machine of which I'm aware. If you want a "large" old machine to make the comparison more impressive, one of the old water-cooled MP behemoths would be your best bet. One such example of a 370 architecture MP system was a 3033 MP complex. Here is an image of one: http://speci.icss.hu/ibmfoto/3033MP_1979.jpg Although you can't see the back half clearly, it is another "h" like the front half turned around 180° with another large frame (a 3038) joining them in the middle. For physical dimensions, see p32 of http://bitsavers.trailing-edge.com/pdf/ibm/370/fe/GC22-7004-14_370_Installation_Manual_Physical_Planning_Jun85.pdf In the 3033MP image the closest wing with 5 visible side panels is about 12.9' wide. The smallest rectangle that will enclose the entire bolted-together parts of the processor is about 23.5' wide and 26.7' deep. In addition there are two L-shaped 3036 consoles requiring a rectangle space of 7.5'x 6.5' and two 3037 PCDUs (Power Cooling Distribution Units), one visible in the far back on the right in the image, each 7.7'x 2.7'. For a rough eyeball size comparison, a z9 or z10 with two frames would be about equivalent in size to 2/5 of the nearest 5-side-panel wing of the 3033MP. Since you couldn't put any other hardware in close proximity to the 3033MP, the computer room floor area required was at least 767 sq ft plus some additional fudge for maintenance access on all sides. By comparison, the floor area required for a z10 is about 30 sq ft plus additional clearance for maintenance, an area reduction by a factor of about 25. -- Joel C. Ewing, Bentonville, AR [email protected] ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
