As400 Apr 2026

The platform has undergone several name changes, often causing confusion for those outside the industry:

The AS/400's longevity is largely due to its unique, forward-thinking architecture: The platform has undergone several name changes, often

: This layer separates applications from the underlying hardware, allowing companies to upgrade to new processors (like Power10) without modifying their software. and devices—is treated as an object

: This architecture treats all RAM and disk storage as one massive virtual address space, simplifying data management. Why It’s Still Relevant in 2026 The platform has undergone several name changes, often

: Hardware consolidated into IBM Power Systems , with the operating system becoming IBM i . Core Architectural Features

: Everything on the system—files, programs, and devices—is treated as an object , which significantly enhances security and stability.

: Unlike other servers, the Db2 for i relational database is built directly into the operating system.