Data systems are organized methods for collecting, storing, managing, and processing data. They enable users to efficiently access and analyze information, supporting decision-making and operational processes. Common components of data systems include databases, data warehouses, and data lakes, each serving different purposes in handling data. These systems can be categorized into various types, such as relational databases, which use structured query language (SQL) for data manipulation, and NoSQL databases, which handle unstructured data. Data systems are essential in various fields, including business, healthcare, and research, as they help organizations leverage data for insights and improved performance.