Additional Pictures 


The ABLE calculator in its package

The backside of the calculator housing with the unusual
NiCd batteries instead the standard 9V block battery.

The six restricted keyboards are labelled ABLE-I to ABLE-VI.

The printed circuit board (PCB) of the ABLE makes use of the
TMS0972 calculator chip and a unique power supply circuit.


If you have additions to the above article please email:

Joerg Woerner, October 20, 2007. No reprints without written permission.