IBM i
IBM's integrated operating system for Power servers, the modern successor to OS/400, running on every current Power 11 model.
IBM i combines the operating system, integrated relational database (Db2 for i), and application runtime in one stack. Current supported levels on Power 11 are IBM i 7.6, 7.5 TR6+, and 7.4 TR12+.
Related Terms
AS/400
IBM's original 1988 midrange server line and the common industry shorthand still used today for the IBM i and Power server ecosystem.
Power 11
IBM's 2025-generation Power processor and server family, spanning the entry S1112 through the flagship E1180, built around three pillars IBM calls Trusted, Autonomous, and Modern.
Software Tier
IBM's IBM i software pricing tier (P05, P10, P20, P30) tied to a processor feature's performance level, determining IBM i license and subscription cost.