AS/400 (APPLICATION SOFTWARE) The AS/400 - formally renamed the " IBM iSeries," but still commonly known as AS/400 - is a midrange server designed for small businesses and departments in large enterprises. Its operating system is called the OS/400.
WHAT IS OS/400 ? The os/400 reside above the machine interface(MI).this allows operating system to be independent from the hardware. LIC (Licensed internal code)
Main three features of AS/400 Database management : The AS/400 has a relational database manager built in as an integral part of both the operating system and machine itself. Communication : It communicates with other computers using protocols such as Ethernet, SNA, OSI, ISDN, TCP/IP, and others. It can support connections to three different LAN at once. Security : We can define data security in terms of objects, user, workstations, files, records, and fields.
OVERVIEW OF OS/400 ARCHITECHTURE Tow part primary operating system Technology independent Machine interface(TIMI) Object based system Single level storage High degree of integration Multiple application program modals Open standards
Library based OS AIX,LINUX,LOTOUS,DOMINOS, MICROSOFT,WINDOWS 2000 AND WINDOWS SERVER 2003 DB2 data base management system Menu driven interface Multi user support Web based application Languages like Java,Microsoft.net etc
1975 SYSTEM/32 1977 SYSTEM/34 1978 SYSTEM/38 1983 SYSTEM/36 IBM develop AS/400 as continuation of the system/38 and system/36 minicomputer. In 2000 IBM renamed the AS/400 to I series as part of its e-server branding initiative.
MODELS OF AS/400 These are the modals which was introduced by IBM in 1988-1989
Java application development: With its closely integrated Java virtual machine and new tools designed by IBM for building commercial applications with Java, the AS/400 can be used as a development system
Web and e-commerce serving: Equipped with a Web server and applications designed to support e-commerce (taking orders, tracking orders, providing service to customers, working with partners and suppliers) and with firewall capabilities, the AS/400 can handle Internet serving for a moderate-size company.