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A '''scanner''' is the device that reads a [[barcode]].Β This will be required to trigger the [[Consumerium buying signal]] and supporting it is the most basic of our [[hardware requirements]] and [[software requirements]]. | |||
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These are now very small and easily [[battery]] operated. | |||
Some fit in a [[scanner ring]] that anyone can wear innocuously - which might provide an advantage in meeting certain [[performance requirements]]. | |||