The platform has undergone several name changes, often causing confusion for those outside the industry:
: Hardware consolidated into IBM Power Systems , with the operating system becoming IBM i . Core Architectural Features The platform has undergone several name changes, often
The AS/400's longevity is largely due to its unique, forward-thinking architecture: 2006 : Renamed System i
: AS/400 launched as the successor to System/36 and System/38. 2000 : Rebranded as iSeries . 2006 : Renamed System i . : This architecture treats all RAM and disk
: This layer separates applications from the underlying hardware, allowing companies to upgrade to new processors (like Power10) without modifying their software.
: Everything on the system—files, programs, and devices—is treated as an object , which significantly enhances security and stability.
: This architecture treats all RAM and disk storage as one massive virtual address space, simplifying data management. Why It’s Still Relevant in 2026