DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| The TP0456 microcomputer
based Primary-Secondary architecture found in the
TI-55-II calculator. The CD4556 is the Primary chip, the smaller CD4555 the Secondary chip.
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If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 4, 2006. No reprints without written permission.
