Properties of a Pocket Calculator for Astronauts

[Thomas Okken]

(09-11-2019 05:04 AM)Ángel Martin Wrote:  To my knowledge those programs have never surfaced so there's no records of them anywhere, is that correct? I see a great opportunity for SlideRule here ! ;-)

Somehow I seem to remember that the Time Module was developed to meet a NASA request, but from the description above the calculators didn't have it. Perhaps it was used in a subsequent mission then.

This is mentioned in the link in Mark's post, just before yours:

Quote:The HP-41C also contained a clock, which allowed astronauts to set alarms and schedule experiments. (The clock was not available to consumers at the time of the first Shuttle launches, but NASA obtained pre-production modules that plugged into the calculators. Hewlett-Packard later offered these as an option.)