👉 A mainframe is a computer system that consists of several interconnected computers connected to one another through a networked interface. The mainframe is typically used for data processing and management, including tasks such as file transfer, data storage, and database access. Mainframes are designed to handle large amounts of data and can be used in a wide range of industries, from government agencies to manufacturing companies. In terms of architecture, the mainframe consists of several interconnected computer units that work together to perform various functions.