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== Internal design == | == Internal design == | ||
The calculator uses | The calculator uses 3 PCBs internally, one for the logic, one for the display, and another for the power supply, the logic board and display board slotinto a card-edge connector mounted to the keypad assembly, with the power board being connected to the display board via a wired connector. | ||
The calculator uses a [[reed switches|reed-switch]] keypad, [[:Category:VFD|Vacuum Fluorescent Displays]] (8x Itron [[Itron DG10L|DG10:]] and 1x Itron [[Itron SP-8A|SP-8A]]), and 9 [https://en.wikipedia.org/wiki/Integrated_circuit Integrated Circuits], the [[Rockwell]] [[Rockwell DC1152|DC1152]], and the [[Rockwell NRD2256|NRD2256]]. | The calculator uses a [[reed switches|reed-switch]] keypad, [[:Category:VFD|Vacuum Fluorescent Displays]] (8x Itron [[Itron DG10L|DG10:]] and 1x Itron [[Itron SP-8A|SP-8A]]), and 9 [https://en.wikipedia.org/wiki/Integrated_circuit Integrated Circuits], the [[Rockwell]] [[Rockwell DC1152|DC1152]], and the [[Rockwell NRD2256|NRD2256]]. |
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