AS/400 - Computer Definition
(Application System/400) The first generation and original name of IBM's System i midrange business computers, which merged into the Power Systems brand. Introduced in 1988, the AS/400 successors are IBM's only non-mainframe, business computer family that uses IBM hardware. The other non-mainframe business series is IBM's System x, which uses x86-based servers. See Power Systems and System x. Designed to Consolidate The unique feature of the AS/400 was its OS/400 software environment, which included an integrated relational database. Also a feature of the earlier System/38, System/38 applications ran intact on the AS/400, but System/36 programs had to be recompiled. The AS/400 served in a variety of networking configurations: as a host or intermediate node to other AS/400s, as a remote system to mainframe-controlled networks and as a network server to PCs. POWER Based In 1994, IBM introduced the AS/400 Advanced System/36, a PowerPC-based version of the AS/400 that natively ran the System/36 SSP operating system and its applications. Starting that year, IBM's POWER CPUs were used in AS/400 models. See POWER, System/36 and System/38.