Micros Systems, Inc. was an American computer company who manufactured hardware and developed software and services for the restaurant point of sale, hotel, hospitality, sports and entertainment venues, casinos, cruise lines, specialty retail markets and other similar markets.

[3] Analyst estimates cited in 2003 put Micros' market share at about 35% of the restaurant point-of-sale business.

On June 23, 2014, Oracle Corporation announced its intent to purchase Micros Systems for $68 per share in cash for a total value of approximately $5.3 billion.

[3] The name Micros is an acronym for Modular Integrated Cash Register Operating Systems.

[10] With the purchase of the company Torex from Cerberus Capital Management, Micros acquired MiRetail Hub, a Workflow application written using Windows Workflow Foundation and designed for the Retail market.