The Atari 810
The Atari 810 Disk Drive was Atari's first disk drive for its line of Atari
400/800 computers. Providing 88K of storage per disk side,
the 810 gave Atari computer users the ability to quickly store and retrieve
documents and program files to and from the storage device.
Up to 4 Atari 810's could be daisy chained together via the Atari SIO bus
for a total of almost 360K of on-line random access file storage and retrieval.
The Atari 810 came in two different versions; the Tandon mech version and
the MPI mech version. The Atari 810 is rather large compared
to other companies disk drives and has an external 9Vac power supply.
The reason why the drive is so large is that there is no disk drive controller
in any of the Atari 400/800 computers, instead each device that connects
to an Atari computer through its SIO bus is actually an intelligent device
with its own intelligent communications controller and floppy disk controller.
The case design was conceived by Kevin McKinsey of Atari's Home Computer
Industrial Design group. The case is interesting in that
the top and bottom covers are actually the same part made to assemble the
top and bottom sides. Adhesive labels on the back of
the 810 would block unused ports on the topside of the cover.
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