Simple application to simulate usage of a barcode scanner. [taken form github.com/mroach]

A hardware barcode scanner is a relatively simple device. It appears to your system as a keyboard and every character in the scanned barcode is sent as a keypress. Most models can optionally be configured to send an EOF character to indicate it's done sending the barcode characters. This litte app does these things. You create a list of 'barcodes' and every time you press the hotkey Windows+Z, the next barcode on the list will be typed. This is useful if you want to test how an application responds to barcode scanner input.

It is an ruby independent,For thoes who dont want to work with ruby/rake. you can directly download Barcode Simulator from here