The 100 .. a result of HP's "Cougar" project. I still have the HP95LX .. which still works fine after 19 years. When I took my 95LX to COMDEX in 1992, it was the first time the HP Engineers had ever seen one with the letters on the keys worn off from heavy usage.
~ Sorry, way off task. Hopefully nobody will mention generating punch cards for Job Control Language on an IBM 370 or I'll REALLY get distracted.
~ Ok, back on task. Just FYI there are Waterproof Bibles - 8.7 x 5.9 x 1.3