National Semiconductor 835
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The National Semiconductor 835 and Novus 835 are four function calculators produced by National Semiconductor. They are notable for using bubble led displays and being an early adopter of Chip-On-Board (COB) calculator ASICs. Like many other calculators produced by NS, the 835 was available in both a cream and brown colour scheme.
 A cream coloured National Semiconductor 835 | |
| Other names | Novus 835 |
|---|---|
| Introduced | 1976 [1] |
| Discontinued | 1978 |
| Calculator | |
| Entry mode | Infix |
| Display type | Bubble LED |
| Programming | |
| Programming language(s) | N/A |
| Other | |
| Power supply | 9V battery, 9V DC power supply |
| Power consumption | 225 to 540mW |
Internal design
When looking at the