Logging into an AIX system
|Type:||Multitasking, multiuser UNIX|
|Architecture:||RT/PC, RS/6000, IBM 386, System/370|
|Current Version:||7.1 for RS/6000, PPC, up to POWER8|
(See 'Let’s start at the very beginning… 801, ROMP, RT/PC, AIX versions', which describes the initial 3 versions.)
AIX 1 was jointly developed by IBM Austin, IBM Yorktown and Interactive Systems Corporation, based on System III and SVR1 of Unix SYSV, and released for the RT/PC. It suffered from the expected limitations of a first release. See IBM RT Personal Computer Technology.
AIX 2 supported the second version of the RT/PC hardware and capabilities planned for the first release. See 'Advanced Interactive Executive (AIX) Operating System Overview'.
AIX 3 was designed to overcome limitations of prior versions and support the RS/6000. In addition, companion versions ('IBM AIX Family Definition Overview') were released for PS/2 and System/370, including TCF (Transparent Computing Facility) based on LOCUS. See AIX 3 Technology
More Linux- and POSIX compatibility. Some POSIX thread library functions that are only stubs in 5.x are actually working in 6.1 (e.g. some locking functions that appear to be available in 5.1 but aren't locking anything!)
Adds virtualization support for AIX 5.3 environments. Built-in clustering support.