As400

: 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 storage as one massive virtual address space, simplifying data management. Why It’s Still Relevant in 2026 : AS/400 launched as the successor to System/36

: Hardware consolidated into IBM Power Systems , with the operating system becoming IBM i . Core Architectural Features : AS/400 launched as the successor to System/36

The AS/400's longevity is largely due to its unique, forward-thinking architecture: : AS/400 launched as the successor to System/36

: This layer separates applications from the underlying hardware, allowing companies to upgrade to new processors (like Power10) without modifying their software.