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> I think 'server' is the wrong term, there are chips which do cost almost
> nothing which can be used to ID things. The simplest I've seen are the
> equivalent of a magnetic bar code, though I'm not sure how much they cost.
Why not just use barcodes? Here are a few reasons:
1. They exist
2. They are ubiquitous
3. You can look them up from a central database
4. Scanners are not very expensive
5. They are a proven technology
6. They cost almost nothing to the manufacturer
--
-- Igor
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