What Oracle MICROS actually is, and why hospitality runs on it
MICROS Systems was founded in 1977 and spent the next several decades becoming the dominant POS in hospitality. Hotels, casinos, sports and entertainment venues, cruise lines, and large restaurant chains around the world standardized on MICROS for in-property POS, kitchen routing, and back-office reporting. In 2014, Oracle acquired MICROS for approximately 5.3 billion dollars and folded it into what is now Oracle Hospitality, alongside Oracle's property management and central reservations products.
Today the product surface includes Oracle MICROS Simphony, the modern cloud POS that most new hospitality deployments use, the legacy Oracle MICROS RES 3700 product that is still very much in production at many established sites, MICROS Workstation and tablet hardware, the kitchen display systems, and the Oracle Hospitality Integration Platform (OHIP) for connecting external systems into the MICROS environment.
MICROS' core strength is enterprise integration. It is the POS that talks cleanly to property management systems for room-charge billing, to central reservations for guest profiles, to casino loyalty systems for player tracking, and to Oracle's broader finance and ERP stack. For a hotel chain, a casino group, or a national sports venue operator, MICROS is the right answer because it is the only POS in the market that connects that deeply across enterprise hospitality systems.