The document discusses how information technology has revolutionized the hospitality industry over the past 20 years. It first provides a brief history of the industry's transition from paper-based to computerized systems. It then outlines several problems the industry faced due to a lack of IT, such as inaccurate record keeping. The bulk of the document details the various technologies now used, including property management systems, point of sale systems, smart room features, and security measures. It explains how these technologies have improved operations in areas like front desk management, food and beverage sales, energy usage, and staff scheduling. Finally, the document concludes that IT has greatly enhanced the industry's professionalism and productivity.