HP Forum Archive 06

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HP 86B vs 86A Message #1 Posted by Stuart Powell on 14 Aug 2001, 4:47 p.m. I've been pulled into a production equipment survival situation with no HP 86 or Rocky Mountain Basic experience. We have an HP 86B computer running a program critical for our prodution environment until a replacement system is installed. Could someone enlighten me on the software/hardware differences between an 86A and an 86B.

Re: HP 86B vs 86A Message #2 Posted by R.J. Bied on 14 Aug 2001, 8:08 p.m., in response to message #1 by Stuart Powell I believe it had to do with RAM 64K or 128K, but I'm not positive.

Re: HP 86B vs 86A Message #3 Posted by Alex Knight on 23 Aug 2001, 11:28 a.m., in response to message #1 by Stuart Powell I have both an 86A and 86B, externally the main differences appear to be with the I/O. The 86A has Centronics-type connectors for floppy drives (a particular model drive was required, I think it is a 9130 but I'm not positive), and for a printer. The 86B has a single HP-IB port (and, I assume, HP-IB support in ROM but I'm not positive) for connecting to disk drives and printers. Hope this helps. Alex Knight The Calculator Museum Web Page http://www.calcmuseum.com

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