| http://www.w3.org/ns/prov#value | - Finally I used to work on embedded computer hardware & chip cellphone chipsets can (are are) sometimes built into things like vending machines so that they can call home (and be dialed up for servicing/sales data); these were used for data only transmission but I remember thinking that all it needed was a mic & we could have captured noise from around the machine (which would have been 90% machine
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