Did You Know...
- KMR Global
- Sep 21, 2020
- 1 min read
First bar code scanner prototype used a powerful 500-watt incandescent bulb 💡 and an oscilloscope was used to "read" the code; the whole thing was the size of a desk 🪑

Source: https://www.smithsonianmag.com/innovation/history-bar-code-180956704/
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