uniCenta oPOS is a free open source commercial-grade Point of Sale software available for Windows. It is a branch of Openbravo POS and offers a range of features for businesses in the retail and restaurant industries. With uniCenta oPOS, you can run a single terminal or multiple terminals across multiple locations. It supports a variety of commercial grade databases including MySQL, HSQL, PostgreSQL, and Oracle.

The software is capable of running on displays with a resolution of 800×600 and higher, making it suitable for use on Pad type devices. It offers customizable screen, ticket, and receipt layouts, allowing businesses to tailor the software to their specific needs. uniCenta oPOS also supports mobile point of sale functionality, allowing for flexibility in serving customers.

In terms of hardware compatibility, uniCenta oPOS supports multiple printers, kitchen display monitors, barcode scanners, weighing scales, mag card readers, and customer displays. It also offers comprehensive reporting features and supports various payment gateways.

uniCenta oPOS is available in multiple languages, including English, Spanish, German, French, and Dutch, among others. It also provides web services and allows for user and role-based security.

Please note that no additional information was provided regarding pros, cons, or changes to the software.