Sharp EL-8: Difference between revisions
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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]]. | ||
Revision as of 21:32, 14 July 2022
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| Manufacturer | Sharp |
|---|---|
| Introduced | 1970 |
| Calculator | |
| Display type | VFD |
| Display size | 8 digits |
| Programming | |
| Other | |
| Serial Numbers | 1012099 |
The Sharp EL-8 was an early handheld calculator produced by Sharp.
Special features
Since the calculator uses the Itron font tubes it does not feature leading-zero supression, to help with readability (e.g. it would display '00000001' to display '1').
The calculator uses separate 'minus equals' and 'plus equals' keys, as well as a single key for multiplication and division, this was common for the time period.
Internal design
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-switch keypad, Vacuum Fluorescent Displays (8x Itron DG10: and 1x Itron SP-8A), and 9 Integrated Circuits, the Rockwell DC1152, and the NRD2256.
Gallery
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External Resources
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