| National Semiconductor 4650 |
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| Written by Accutron on 2017-02-24 |
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The National Semiconductor 4650 is a low cost non-programmable scientific calculator, released in 1976 against Texas Instruments' comparable TI-30. The 4650 chipset consists of the NS MM57103DWA/N Slide Rule Calculator and the DS8664N Segment-Digit Parallel-Input Display Driver. The display is a 12-digit NS module, internally similar to the NSA578.
National Semiconductor 4650 Manual (PDF)
National Semiconductor 4650 scientific calculator.
The stylish exterior of the 4650 conceals a cheap and simplified internal construction.
This article is part of the [Electronic Calculators] exhibit.
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