For a work project I've been looking up "mobile computer" barcode scanners, and man they are expensive and run on ancient hardware. A lot of these things on the low end ($300 to $600) have 15 year old ...
If you plan to run a very small store, sometimes called a "mom and pop" shop, you can probably hand-enter pricing information when ringing up a customer's order. For a larger scale operation, however, ...