The AS/400 is a popular family of mid-sized computer systems which can also be used as multi-user computer systems. By this, we mean that a single computer can interact with more than one user at a time. It was first introduced byon June 21st, 1988.
The AS/400 can be utilized for different business facets. Some models are designed as systems that provide resources to other computers, also known as a “server” in a network of computers, while others are set up for use with terminals or “display stations”.
OS400 is the operating system for the AS/400. The AS/400 computers offer more compatibility across the product line than the earlier System/3X computers. Hence, the earlier IBM models of the System/36 and System/38 have since been replaced by the AS/400 systems.
Why AS400 is important
IBM has sold over 600,000 AS/400’s and over 350,000 of them are still active. From distribution warehouses to hospital administrators, and even manufacturing companies, the AS/400 is a strong component in aiding these companies’ daily business operations. The AS/400 utilizes a green screen interface, a built in database that resembles DB2, and a vast array of software to provide business solutions for today’s business needs.
Evolution of AS400
In October of 2000, IBM rebranded the AS/400 and announced its name as theiSeries. As part of IBM’s Systems branding initiative in 2006, it was again renamed to System i. The codename of the AS/400 project was “Silver Lake”, named for the lake in downtown , where the development of the system took place.
In April 2008, IBM announced its integration with the System p platform. The unified product line is called IBMand features support for the IBM i (previously known as i5/OS or OS/400), AIX and GNU/Linux operating systems.
It includes an integrated DB2 database management system, a menu-driven interface, multi-user support, non-programmable terminals (IBM 5250) and printers, security, communications, client-server and web-based applications. Much of the software necessary to run the IBM System i is included and integrated into the base operating system.
The IBM System i also supports common client–server systems such as ODBC and JDBC for accessing its database from client software such as Java,and others.
Programming languages available for the AS/400 include RPG, assembly language, C, C++, Pascal, Java, EGL, Perl, Smalltalk, COBOL, SQL, BASIC, PHP, PL/I, Python and REXX. Severalare available: AllFusion Plex (see *Plex Wiki), Accelerator for IBM i, ADELIA, Synon, AS/SET, IBM Rational Business Developer Extension, LANSA, ProGen Plus and .
The ILE (Integrated Language Environment) programming environment allows programs from ILE compatible languages (C, C++, COBOL, RPG, Fortran, and CL), to be bound into the same executable and call procedures written in any of the other ILE languages.
The IBM System i fully supports the, including a 32-bit (JVM) and a 64-bit JVM.