5-9
Okuma America Corporation
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Rev. 8-21-01
Main Card 11, 12 RAM
When the machine is turned on, the software is downloaded from bubble memory to RAM. The
active program is run from DRAM on the MC 11 and MC 12 cards. These cards are mounted
on the MB-IIB. MC 11 can handle 512 Kbytes of memory while the MC 12 can handle 2
Mbytes of memory. Up to three MC 11 or three MC 12 cards may be mounted on the MB-IIB
but a combination of both kinds is not permitted. The CPU can only access one or the other. As
of January “94” the MC 11 card is no longer being used on new models.
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