DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| This Montgomery
Ward electronic P800 calculator aka TXI-8642A was
manufactured in 1973 by Texas Instruments.  |
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| The internal
construction of the boxy Montgomery Ward TXI-8642A looks very
solid.
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The Montgomery Ward TXI-8642A relies on Texas Instruments technology for the keyboard, display drivers and display.
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The printed
circuit board (PCB) of the Montgomery Ward TXI-8642A makes use of a TMS0103 or TMS0109 single-chip calculator circuit.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 28, 2006. No reprints without written permission.
