From what I
remmeber this is an XT machine with an 8086 CPU (not the 8088
used in the IBM
PC/XT) and thus the CPU has a 16 bit databus.
The expansion slots are standard 8 bit ISA and a second connector that is
_not_ the same as the 16 bit ISA extension (it's mounted much further
forward so there's no chance of you fitting the wrong sort of board). You
can use 8 bit ISA cards and there were a few special Olivetti cards that
used the 16 bit extension.
Mostly the memory expansion stuff... I was surprised they didn't have a
16 bit disk controller that would've blown away the competition at the
time.
Isn't it DIP switches on the CPU board (the one
mounted chips-down under
the bottom cover)?
Yup.
-tony
--
--Bill
bpechter(a)monmouth.com | FreeBSD since 1.0.2, Linux since 0.99.10
| Unix Sys Admin since Sys V/BSD 4.2
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