Hi, Congradulations, the 9826 is a pretty decent machine. ALL languages for it were optional unless you bought it as part of some kind of package (circuit board test station, etc). Pascal, HPL and BASIC could all be obtained as disk based languages and HPL and BASIC could also be purchased on ROM cards. (I'm not sure if Pascal was or not but I doubt it since it was a big program with lots of modules). I don't know of any on-line references for HPL. AFIK there was no HPL manual for the 9826, instead HP issued manuals that were written for the HP 9825. You might be able to find one of those. When I started out with the 9825/9826 I didn't have any HPL manuals but I knew that it was similar to APL so I used an APL manual. It was close enough to get me started. Joe At 03:36 PM 12/28/03 +0000, you wrote: 15 years ago at work). standard, or whether all languages are options. (seems pretty daft to ship it without anything) guide anywhere.