![](/static/66c60d9f/assets/icons/icon-96x96.png)
![](https://beehaw.org/pictrs/image/c0e83ceb-b7e5-41b4-9b76-bfd152dd8d00.png)
OCR existed long before the 486. AFAIK it was already used in the 70’s or 80’s to scan mail and presort them based on the postcode. I remember that postcards had light orange boxes (presumably because this color was invisible to B/W scanners?) with dots inside where you where supposed to write the postcode numbers in.
🤔