what IBM system is this?

ANDY HOLT andy.holt at tesco.net
Sat Jul 4 20:32:08 CDT 2015

----- Original Message -----
From: "Chuck Guzis" <cclist at sydex.com>
To: General at classiccmp.org, Discussion at classiccmp.org:On-Topic and Off-Topic Posts <cctalk at classiccmp.org
Sent: Sunday, 5 July, 2015 1:13:31 AM
Subject: Re: what IBM system is this?

On 07/04/2015 04:37 PM, simon wrote:
> found in the archives of CERN, this image is beautiful! but what IBM
> system is this.
> https://cds.cern.ch/record/1847692

I don't believe you're looking at a single system.  Note the banks of 
CDC 844 disk drives in the foreground (you can even make out the 
"Control Data" logo.

I suspect that the cross and 3/4 cross CPUs are CDC CYBER 170s (or 180s).

So, not really IBM at all

A bit of Google-fu suggests that this is part(!) of an installation that includes 

a Siemens 7890
An IBM 3090E (those crosses right of centre)
A Cray X/MP (don't think it is in photo)
A substantial VAXcluster (part of which is just visible at the back on the right)

That machine room (hanger?) has very different contents now (and is on Google street view)

Oh, and the processing power of that 1990 (approx) installation is similar to that of a current top-end desktop PC 


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