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AIX

Screenshot of IBM AIX version 7.3
Developer	IBM
Written in	C
OS family	Unix (System V)
Working state	Current
Source model	Closed source; formerly source available
Initial release	February 1986; 38 years ago (1986-02)^[1]
Latest release	7.3 TL2^[2] / November 2023; 1 year ago (2023-11)
Marketing target	Workstation, Server
Platforms	Current: Power ISA Former: IBM ROMP, IBM POWER, PowerPC, x86 (IBM PS/2), System/370, ESA/390, IA-64 (Itanium)
Kernel type	Monolithic with dynamically loadable modules
Userland	POSIX / SUS
Default user interface	KornShell (ksh88),^[3]^[4] Common Desktop Environment, (Plasma Workspaces and GNOME optional)
License	Proprietary
Official website	ibm.com/products/aix

History of IBM mainframe operating systems
Early mainframe computer OSes GM OS & GM-NAA I/O (1955) BESYS (1957) UMES (1958) SOS (1959) IBSYS (1960) MIT CTSS (1961) 7040/7044 Operating System (16/32K) (7040-PR-150) 1410/7010 Operating System (1410-PR-155)
Miscellaneous S/360 line OSes BOS/360 (1965) TOS/360 (1965) TSS/360 (1967) MTS (1967) ORVYL (1967) RACS (1965) RAX (1966) MUSIC (1972) MUSIC/SP (1985)
DOS/360 and successors (1966) DOS/360 (1965) DOS/VS (1972) DOS/VSE (1979) VSE/AF (1979) VSE/SP (1983, 1985) VSE/ESA (1991) z/VSE (2005) VSEⁿ (2021)
OS/360 and successors (1966) MFT (1966) MFT II (1968) OS/VS1 (1972) OS/VS1 BPE MVT (1967) 65MP OS/VS2R1 (SVS) (1972) MVS (OS/VS2R2 and later) (1974) MVS/SE (1978) MVS/SE 2 (1979) MVS/SP Version 1 (1980) MVS/XA (1983) MVS/ESA (1988) OS/390 (1995) z/OS (2000)
VM line CP-40 /CMS (1967) CP-67 /CMS (1967) VP/CSS (1968) VM/370 (1972) VM/BSE (BSEPP) VM/SE (SEPP) VM/SP (1980) VM/XA MA (1984) VM/XA SF (1985) VM/XA SP (1988) VM/ESA (1990) z/VM (2000)
TPF line ACP (1967) TPF (1979) z/TPF (2005)
UNIX and Unix-like UTS (1981) AIX/370 (1990) AIX/ESA (1991) MVS/ESA OpenEdition (1993) VM/ESA OpenEdition (1995) OS/390 UNIX System Services (1996) Linux (1999) z/VM OpenExtensions (2000) z/OS UNIX System Services (2001) OpenSolaris (2008)
v t e

AIX (pronounced /ˌeɪ.aɪ.ˈɛks/ ay-eye-EKS^[5]) is a series of proprietary Unix operating systems developed and sold by IBM since 1986. The name stands for "Advanced Interactive eXecutive". Current versions are designed to work with Power ISA based server and workstation computers such as IBM's Power line.

^ Prenessa Lowery (February 23, 2021). "35 Years of Innovation". IBM. Archived from the original on March 11, 2021. Retrieved February 24, 2021.
^ "AIX 7.3 Release Notes". www.ibm.com. November 2023. Retrieved February 1, 2024.
^ Casey Cannon; Scott Trent; Carolyn Jones (1999). Simply AIX 4.3. Prentice Hall PTR. p. 21. ISBN 978-0-13-021344-0.
^ "sh Command". IBM Documentation. Retrieved January 21, 2023.
^ "Unix Pronunciation". wordpress.com. January 29, 2010. Archived from the original on October 28, 2011. Retrieved November 18, 2011.