The HP 82940A GPIO Manual for the HP Series 80 computers has been added to the www.series80.org web site.
I am happy to say that this manual just about concludes the scanning of my collection. When I started the Series 80 site, the market prices for these computers were quite reasonable, but nowadays prices have increased to the point where I do not think it reasonable to try to enlarge the collection any further.
This means that unless somebody donates manuals or scans, the on-line collection is not likely to increase any further.
Best Regards
**vp