This WhoKnew web site video [1] describes several early calculating devices including the first commercial electroinc calculator (50+feet long) from IBM.
Material Type:
Lecture/Presentation
Education Level:
Middle School [2]
High School [3]
Focus Subject:
Science [4]
Technology [5]
HW Platform:
Any [6]
SW Platform:
Any [7]
Interactivity Style:
Mixed [8]
