Fully functional. See this website for description:
https://bradsprojects.com/digirule2/
Download manual and other documentation from here:
https://bradsprojects.com/download/2243/
I'm downsizing and cleaning out old electronics.
Lays completely flat so it actually can be used as a ruler too! (Inches and centimeters in binary)
DigiRule 2A computer on an 8" ruler (Feasterville)
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