This document discusses hospital information systems and electronic medical records. It begins with a general introduction to hospital management software and health informatics. It then describes different types of hospital information systems, including strategic/operational systems, clinical/administrative systems, and financial/clinical systems. Examples of specific hospital information systems are provided, such as patient management systems and clinical information systems. The document also discusses electronic health records and patient health records. It notes some key differences between electronic health records and electronic medical records. Benefits of electronic medical record implementation for both patients and medical practices are outlined. Major risks of electronic medical records related to security, such as unauthorized access and data breaches, are also discussed.