Lemon Is an opensource Point of Sale software for micro, small and medium businesses. Supports many POS terminals with a single database on a network., and has been tested with Star Micronics Thermal/Parallel printers and Datalogic barcode readers.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.