Shopping carts that know what's on your grocery list
SEATTLE — Microsoft Corp. is bringing digital advertising to the grocery cart.
The software maker spent four years working with Plano , Texas -based MediaCart Holdings Inc. on a grocery cart mounted console that helps shoppers find products in the store, then scan and pay for their items without waiting in the checkout line.
Microsoft's acquisition of aQuantive , an online advertising company, for $6 b...
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