Same case design for the 3 models, except…
… The color of the arrow keys, search keys, and On/Off keys
Top and back sides
(1) Model 100, (2) Model 120 with an extra 8 KB memory chip, (3) Model 140 with a 32 KB memory chip and the display backlight circuitry.
All of the parts of a PocketMate 100 series
|Datamath page about the Datamat series|