Hospital management information systems (HMIS) provide a secure environment for sharing patient data across hospital departments. An HMIS digitally manages key functions like patient registration, appointment scheduling, admissions/discharges/transfers, ward management, pharmacy operations, radiology, billing, and electronic medical records. HMIS benefits hospitals by giving staff immediate access to patient information, reducing paperwork, and allowing easy data entry, retrieval, and reporting for tasks like tracking inventory, scheduling staff, and analyzing performance and costs.