Customers value IBM's AS/400's reliability, stability, and security. However, despite its impressive performance and use of independent software vendors to broaden its functionality, AS/400 suffers from the perception that its an ancient technology.
built-in as an afterthought, security was built into the AS/400 from the beginning, as part of the original design. For more information, see The AS/400 Takes You Securely Where You Want to Go . However, because the platform had initially lacked a native graphical user interface (GUI), portability, Internet-enablement, and poor integrated with other software products (especially non-iSeries based products), its use has significantly declined lately, and users have shifted towards more user-friendly