The author considers the potential advantages and disadvantages, as well as possible unintended consequences, of introducing electronic medical record systems in health care organizations. Special consideration is given to the issues such information systems raise concerning privacy, confidentiality, and quality of care from both patient and provider perspectives. The potential gains from computerizing medical records include the benefit of instantaneous availability of patients' medical history, treatment regimes, and current health status in routine and emergency clinical situations. Ease of access to this information should reduce adverse outcomes. The added value of a complete and up-to-date medical record immediately available to medical caregivers seems undeniable. The potential disadvantages include issues around patient confidentiality and unauthorized access to records, the enormous capital investment for computer hardware, and system maintenance.