HP 9825a

[Paul Berger (Canada)]

That should be 9831 not 9835. The 9831 is the same hardware as a 9825A but with a different OS it is the same BASIC as the 9830 probably designed as a stop-gap BASIC machine between 9830 and 9845. The 9835 came after the 9845A and runs the same BASIC as the 9845 but does not support graphics. The processor in the 9835/45 is an enhanced version of the processor used in the 9825/31. I have a OS module for a 9831 here but I have not tried it as I have a 9825T so I would need a memory card for a 9825A and heal a couple traces on the processor board that are cut on the 9825 B&T models. I do plan to do this, it is in the queue with a bunch of other things.