What is the AS400 IBM Mainframe?
The AS400 IBM mainframe refers to IBM’s midrange computing platform, introduced in 1988, that combines hardware, operating system (OS/400), and a built-in database for business-critical applications. While not a mainframe in the traditional sense (such as IBM’s Z Series), the AS400 was designed to handle large-scale business workloads with high availability, security, and scalability, much like mainframe systems. Known for its robust reliability, the AS400 has evolved into the IBM i platform, maintaining its core architecture and integrating modern technologies. It remains an essential system for enterprises, particularly for legacy applications in industries like manufacturing, retail, and finance. Although it lacks some of the features of modern mainframes, the AS400 IBM system continues to be a vital solution for data processing and transaction management in businesses around the world.