CertifiedAS/400 architecture is often used for ERP and other mission-critical tasks, particularly in industries that require extreme reliability, such as manufacturing. IBM Power Systems are popular with SAP users, as well as competing database management systems, such as Oracle Database
In AS400, AS stands for "Application System”.· It is multiuser, multitasking and very secure system and hence is used for the industry which requires sensitive data to be stored and processed simultaneously.
It has integrated the DB2 database management system, menu-driven interfaces, multi-user support, security, communications, client–server and web-based applications.
It is best suited for mid-level industry and hence is used in pharmaceutical industry, banking, malls, hospital administration, manufacturing, distribution industry, financial organization, e-commerce etc
The operating system for AS400 also got renamed with the rebranding. Initially, it was OS/400 then i5/OS and then iBM i (Power system).
OS/400 Version 4, introduced a feature LPAR (Logical PARtitioning) which facilitates running multiple operating systems simultaneously on one IBM System i unit ensuring that one OS doesn’t interfere other’s system resources/memory.
Certified
You have 
