The Museum of HP Calculators

HP Forum Archive 20

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9825A use 9121 disk drive?
Message #1 Posted by David Ramsey on 11 May 2011, 4:03 p.m.

Can a 9825A calculator use a 9121D disk drive connected via HP1B? I know that separate special ROMS are required for it to control some of the old 8" and 5.25" drives, but I haven't seen anything on the newer 3.5" drives...

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