Announced February 12, 1985 and withdrawn May 5, 1989.
The following is the text of an IBM Information Systems Group press fact sheet distributed on February 12, 1985.
The central electronic complexes of the IBM 3090 model 200 and model 400 processors announced today consist of the following new components:
- The processing unit, with two central processors in the
model 200 and four central processors in the model 400.
The processors in each model can share main storage and
- Sixty-four megabytes of central storage, which are standard
on the model 200; 128MB of central storage are standard
on the model 400.
- Thirty-two channels, which are standard on the model 200;
64 are standard on the model 400.
- The IBM 3092 processor controller, which has two processors
to monitor and control the processor complex and to provide
maintenance support. An upgrade to the 3092 is required
when upgrading to the 3090 model 400.
- The IBM 3180 model 145 display station, which attaches
to the 3092. A minimum of two display stations are required
for the model 200 and three for the model 400 to provide
the operator and service personnel with access to the processor
- The IBM 3097 power and coolant distribution unit. Two
are required for the model 400.
- The IBM 3089 model 3 power unit or an equivalent source
of 400 hertz power. Two power units are required for use
with the model 200 and four with the model 400.
- The IBM 3864 model 2 modem or equivalent with automatic
calling unit. One modem is required for the model 200, and
two for the model 400 to take advantage of remote service
In addition, the 3092 processor controller requires two IBM
3370 model A2 direct access storage devices with string switches
or equivalent. The 3092 requires access to a customer-supplied
3420 model 4, 6 or 8 tape drive or equivalent.