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This is the box schkol resides in, it's called "BA123",
and was a usual packaging unit for Digital micros (MicroVAX and MicroPDP)
in the late '80s. It has space for 4 or 5 storage units (usually HDs, a
cartridge tape drives and a dual floppy drive), has a qbus-22 backplane
and a big power supply.
(Sorry for the poor quality of the pictures, the photos were taken with a little automatic camera, and the scanning was not that fantastic either... ) |
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The BA123 is easy to maintain. If you know the right moves,
you can take it apart in seconds. If you don't know them, you can go loco
:-)
On the picture, you can see some switches (mainly for the HDs), two RD54 hard disk units (in the empty top slot there used to be a TK70 tape drive, but it's broken, so we don't have backup media.... HEEEEEELP), some ribbon cables and one of the cooling fans. There is a hidden switch, that makes the fans spin even faster if you take off the side-cover. The cooling of the machine works best with the box beeing closed! |
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MicroVAX II - The information center: telephone, Internet via thin Ethernet, classic information medium (the folder). What more can you ask? |
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Wowsie. Don't try this at home! :-)
You can see the actual heart of the machine here: the board on the middle
of the floor is the KA630-AA CPU. The full-size (quad) cards to the left/below
it are the two memory cards, each one contains 8 MB of RAM. They communicate
via a ribbon cable, that looks pretty much like a SCSI cable to unaware
spectators. If you show a uVAX II to a PC-oriented guy, be prepared to
hear the question "Wow, is this a SCSI-controller?" :-)) |