Mainframe Systems
Mainframe systems are high-performance, reliable, and secure computing platforms designed for large-scale, mission-critical data processing and transaction handling. They are characterized by their ability to process massive volumes of data with high availability, often used in industries like banking, insurance, and government. Modern mainframes support virtualization, cloud integration, and run operating systems such as z/OS, z/VM, and Linux on IBM Z.
Developers should learn mainframe systems when working in industries that require extreme reliability, security, and scalability for core business applications, such as financial transactions or large-scale databases. It is essential for maintaining legacy systems in enterprises and for modernizing these systems with new technologies like APIs and cloud connectivity. Use cases include banking transaction processing, airline reservation systems, and government record management.