DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

This Montgomery Ward  P100 was manufactured in
Summer 1974 by Texas Instruments .

 

The printed circuit board (PCB) of the Montgomery Ward  P100  is
centered around the TMC0803 Single Chip Calculator Circuit.

The brain of the Montgomery Ward  P100.

The differences between the Montogomery Ward P100
and the exactra 23 are minor. 

Please use the two pictures to compare the details:

bullet

Different display screen mounted in a raised frame

bullet

Blue keys vs. the brown colored keys

bullet

Keyboard face-plate larger

The side views of the Montgomery Ward P100 (top) and the 
exactra (model 22 w/o power supply shown) reveal:
bullet

Changed mold for the display frame

bullet

Modifications of the housing for the bended keyboard plate


horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, September 20, 2002. No reprints without written permission.