It became chain and no direction when you face critical decision to make your work faster and solve the issue faster, you face long time answer from your closed source vendor for your software, even we wait they still charge for the software major update or others. You need to break free, and move on without waiting too long. The answer is open source, cross platform, and free.
If you build business on restaurant, cafe, or retailer, you need Point of Sales Software that will capable to handle your daily transaction, and manage inventory. I just googling with the word “free linux point of sales”, and i found many interesting link. But with many result from google you need to narrow down your search into interest.
Now, i narrow down, and i choose the result “10 popular free open source point sales“, from these list narrow down again and see which list that have higher rating. I found two higher rating as follow: 1. OpenBravo POS, and number 2 is Floreant POS.
With these two POS there are many different purpose, while those two can work on any platform, because it built base on Java Platform, so java can run anywhere even on linux, and FreeBSD.
Cafe and Restaurant POS
For cafe and restaurant POS, Floreant POS is capable to handle the daily transaction with touch screen user interface, user manager, food item management.
For the complete screenshots please visit the link here, to download Floreant POS, just visit the link here.
FloreantPOS using Apache Derby database, it said it is embedded database but that can run also as RDBMS, here is the reason IBM Cloudscape vs MySQL.
Retail POS
For mini market or supermarket, OpenBravo POS could be fit for your need, because it also support OpenBravo CRM.

For current version it also support for Cafe and Restaurant.

