An Information System is a structured system designed to collect, store, manage, and disseminate data. It combines technology, people, and processes to support decision-making and improve efficiency in organizations. Common components include hardware, software, data, procedures, and users. These systems can be used in various fields, such as business, healthcare, and education. For example, a Customer Relationship Management (CRM) system helps businesses manage interactions with customers, while an Electronic Health Record (EHR) system stores patient information for healthcare providers. Overall, information systems play a crucial role in modern society by facilitating the flow of information.