IBM i 6.1 logo
|
|
| Company / developer | IBM |
|---|---|
| Working state | Current |
| Source model | Closed source |
| Initial release | 1988 |
| Latest stable release | 6.1 / Jan 29, 2008 |
| Available language(s) | English |
| Kernel type | shares many Microkernel (SLIC) and Virtual machine (TIMI) design philosophies |
| License | Proprietary |
| Website | IBM i 6.1 |
IBM i is an operating system used on IBM Power Systems, a unified server platform from the former IBM System i and IBM System p servers. IBM i was formerly known as i5/OS or OS/400. OS/400 and AS/400 were introduced in 1988. The latest version is 6.1, released on January 29, 2008 and shipping since March 21, 2008. The new name, IBM i, was revealed on April 2, 2008.[1]
OS/400, i5/OS and IBM i have built-in subsystems that provide some backward compatibility with earlier IBM general business systems, such as the IBM System/36 and IBM System/38 series.
IBM designed IBM i as a "turnkey" operating system, intended to require little or no on-site attention from IT staff during normal operation. For example, IBM i has a built-in full-featured DB2 database which does not require separate installation and maintenance. In later releases, System administration has been wizard-driven. The AS/400 is an object oriented system with an integrated database that was designed to implement Edgar F. Codd's relational database model in the operating system and hardware. The system management tools are mostly menu-driven.[2]
IBM i includes a performance-tuned Java implementation. This Java implementation, like all JVM's supplied by IBM, offers only native threads (as opposed to green threads) and thus threading in Java on IBM i is only supported in batch jobs that have the "Allow Multithread" (ALWMLTTHD) set to YES.[3][4] The environment supports Java Native Interface[5] but one might need to maintain awareness of the LLP64 data model.[6][7]
Though not natively a graphical operating system, the Client Access Licensed Product includes iSeries Navigator a client based and web based version for graphical system and database administration and for the Apache web server and WebSphere Application Server, there is web based administration.
In 2007, IBM, Zend Technologies and MySQL AB announced support for the PHP programming language and the MySQL open source database on the IBM i platform.
IBM i is one of the three operating systems supported on IBM Power Systems alongside AIX and Linux.
Version format
Since IBM i, the version format was also changed from VxRxMx (Version, Release, Modification, e.g. V6R1M0) to the more standard format (e.g. 6.1).
References
- ^ IBM Power Systems: What is the new Power Equation?
- ^ AS/400 As/400 System IBM Operating Programs Run Machine
- ^ Multithreaded program startup commands
- ^ Example: Java Invocation API
- ^ Using the Java Native Interface for native methods
- ^ Teraspace storage model native methods for Java
- ^ Chapter 4. Teraspace and single-level store
External links
|
||||||||||||||
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
