Editing IBM AIX (section)

== Background ==
Originally released for the [[IBM RT PC]] [[Reduced instruction set computer|RISC]] [[workstation]] in 1986, AIX has supported a wide range of hardware platforms, including the IBM [[IBM RS/6000|RS/6000]] series and later [[IBM Power microprocessors|Power]] and [[PowerPC]]-based systems, [[IBM System i]], [[System/370]] mainframes, [[IBM PS/2|PS/2]] personal computers, and the [[Apple Network Server]]. Currently, it is supported on [[IBM Power Systems]] alongside [[IBM i]] and [[Linux]].

AIX is based on [[UNIX System V]] with [[4.3BSD]]-compatible extensions. It is certified to the UNIX 03 and UNIX V7 specifications of the [[Single UNIX Specification]], beginning with AIX versions 5.3 and 7.2 TL5, respectively.<ref>{{cite web|url=https://www.opengroup.org/openbrand/register/ibm.htm|title=IBM Corporation Registered Products by Product Standard|access-date=2022-01-23|website=Open Group|archive-date=2022-01-23|archive-url=https://web.archive.org/web/20220123205634/https://www.opengroup.org/openbrand/register/ibm.htm|url-status=live}}</ref> Older versions were certified to the UNIX 95 and UNIX 98 specifications.<ref>{{cite web|archive-url=https://web.archive.org/web/20030802103246/http://www.opengroup.org/openbrand/register/|url=http://www.opengroup.org/openbrand/register/|title=The Open Brand - Register of Certified Products|date=2003-07-23|archive-date=2003-08-02|access-date=2022-01-23|website=Open Group}}</ref>

AIX was the first operating system to implement a [[journaling file system]]. IBM has continuously enhanced the software with features such as processor, disk, and network [[virtualization]], dynamic hardware resource allocation (including fractional processor units), and [[reliability engineering]] concepts derived from its [[mainframe computer|mainframe]] designs.<ref>{{cite web|url=http://www.ibm.com/developerworks/aix/library/au-unix40/#aixhistory|title=UNIX turns 40|access-date=2011-02-09|publisher=IBM Corporation|date=2011-02-09|archive-date=2011-06-24|archive-url=https://web.archive.org/web/20110624231140/http://www.ibm.com/developerworks/aix/library/au-unix40/#aixhistory|url-status=dead}}</ref>