Which country is the opera hotel system from?

_PERA American MICROS products, the domestic agent is Beijing Century Company.

_pera PMS is the most common hotel front desk operating system in the world, which can meet the needs of hotels and hotel groups of different sizes, and provide comprehensive system tools for hotel management and employees, so that they can quickly and efficiently handle daily work such as customer information, customer reservation, check-in/check-out, room allocation, indoor facilities management and bill management.