ACOPOST is a set of freely available POS taggers modeled after well-known techniques. The programs are written in C (aiming for extreme portability and code correctness/safety) and run under various Unix flavors (and probably even under Windows). ACOPOST currently consists of four taggers that are based on different frameworks: Maximum Entropy Tagger (MET), Trigram Tagger (T3, based on Hidden Markov Models), Error-driven Transformation-based Tagger (TBT or Brill Tagger), and Example-based tagger (ET).
Floreant POS is a point of sales application that can benefit restaurant businesses by simplifying order management, automation of the kitchen, and keeping control of cash. It features touch screen order managment, table allocation, and carry out support. Manager facilities include drawer pull, drawer bleed, tip payment by credit card, and POS printer reports. Kitchen receipts can be printed for faster processing of orders. It can run either on a single PC system or in a client-server mode.
Dolibarr is a simple Web application with ERP and CRM capabilities. It is designed for small and medium companies, freelancers or foundations, and can be used to deal with all things you require to manage your activities, such as management of products, stocks, commercial proposals, invoices, orders, members of a foundation, and mailings. A single executable that installs the server and database is available for people with no technical knowledge.