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QBUS Card Reader Controllers

Mal

Experienced Member
Joined
Apr 3, 2008
Messages
91
I am aware of the CR11 (M8290/M8291) controllers for the UNIBUS.

What card reader controllers were available for QBUS?

The only one I am aware of is the MDB MLSI-CR11. I have one of those boards and have just scanned the manual for it -> http://avitech.com.au/?p=3749

I'm keen to find out whether there was a DEC QBUS card reader controller.

Supplementary question: The front page of the manual for the MLSI-CR11 refers to a "DATA 100" card reader. Does anyone know which reader (or family or readers) this refers to?

Some further context to these questions: I have a couple of PDI 2022M mark-sense card readers and I am keen to eventually get them working on OMNIBUS/QBUS/UNIBUS systems. I am aware of the excellent work David Gesswein has done in this area, but if other people have working systems, please let me know.

Malcolm.
 

bqt

Veteran Member
Joined
Sep 15, 2019
Messages
506
Location
Zurich, CH
I am aware of the CR11 (M8290/M8291) controllers for the UNIBUS.

What card reader controllers were available for QBUS?

The only one I am aware of is the MDB MLSI-CR11. I have one of those boards and have just scanned the manual for it -> http://avitech.com.au/?p=3749

I'm keen to find out whether there was a DEC QBUS card reader controller.

Supplementary question: The front page of the manual for the MLSI-CR11 refers to a "DATA 100" card reader. Does anyone know which reader (or family or readers) this refers to?

Some further context to these questions: I have a couple of PDI 2022M mark-sense card readers and I am keen to eventually get them working on OMNIBUS/QBUS/UNIBUS systems. I am aware of the excellent work David Gesswein has done in this area, but if other people have working systems, please let me know.

Malcolm.

DEC never did a card reader controller for the Qbus. And the one for the Unibus was not very common as far as I can tell. DEC was never much into cards in general. They wanted interactive computing... :)
 
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