Comparison of operating systems

These tables comparegeneral and technical information for a number of widely used and currently availableoperating systems.

Note: Because of the large number and variety of available Linux distributions, they are all grouped under a single entry; seecomparison of Linux distributions for a detailed comparison. There are also a variety of BSD operating systems, covered incomparison of BSD operating systems.

General information[]

Name	Creator	First public release	Predecessor	Latest stable version	Latest release date	Cost/Availability	Preferredlicense^{[g 1]}	Target system type
AIX	IBM	1986	UNIX System V Release 3	6.1	2007	Bundled with hardware	Proprietary	Server,NetApp,Workstation
AmigaOS Classic	Commodore International, Haage and Partner	1985	TRIPOS (as the disk operating component of AmigaOS)	3.9	2008	Bundled with hardware up to version 2.0. Versions 2.1, 3.0, 3.1, 3.5 and 3.9 also available as separate package.	Proprietary, Open source clone available underAROS Public License	Workstation,Personal computer
AmigaOS 4	Hyperion Entertainment	2004	AmigaOS Classic	4.1 Update 2	2010	4.0 bundled with hardware. 4.0 for classic and 4.1 available as standalone package at € 99.	Proprietary	Workstation,Personal computer
FreeBSD	TheFreeBSD Project	1993	386BSD	8.1	2010	Free	BSD	Server,Workstation,NetApp,Embedded system
Haiku	Haiku Inc.	2009	BeOS R5	R1/Alpha2	2010	Free	MIT License	Personal computer
HP-UX	Hewlett-Packard	1983	UNIX System V	11.31 "11i v3"	2007	$400	Proprietary	Server,Workstation
IBM i	IBM	1988	OS/400	V6R1.1	2009	Bundled with hardware	Proprietary	Server
IRIX	SGI	1988	UNIX System V	6.5.30	2006	Bundled with hardware	Proprietary	Server,Workstation
Inferno	Bell Labs	1997	Plan 9	Fourth Edition	2007	Free	MIT/GNU GPL/GNU LGPL/LPL	NetApp,Server,Embedded system
Linux	Linus Torvalds, et al.	1992	Unix^{[g 2]},Minix^{[g 3]}	Linux kernel 2.6.33;GNU C Library 2.11	2010	Costs depend on the distribution	GNU GPL,GNU LGPL and other licenses	See:Comparison of Linux distributions
Mac OS	Apple Inc.	1984	None^{[g 4]}^{[g 5]}	9.2.2	2002	Bundled with68K and PowerPC Macs; versions 7-9 sold as retail upgrades^{[g 6]}	Proprietary	Workstation,Personal computer
Mac OS X	Apple Inc.	2001	NeXTStep /OPENSTEP /Rhapsody,Mac OS,UNIX	10.6.4	2010	Bundled with hardware; upgrades sold separately: Desktop $169 (Single User Mac Box Set), $29 (Single User Mac OS X v10.5 Upgrade) Family Pack $229 (5 User Mac Box Set), $49 (5 User Mac OS X v10.5 Upgrade)	Proprietary higher level API layers with Open source core system (Both Intel and PowerPC versions) (APSL,GNU GPL, others)	Workstation,Personal computer,Embedded system
Mac OS X Server	Apple Inc.	2001	NeXTStep /OPENSTEP /Rhapsody,Mac OS	10.6.3	2010	Bundled with hardware; also sold separately: $499 (unlimited clients)	Proprietary higher level API layers with Open source core system (Both Intel and PowerPC versions) (APSL,GNU GPL, others)	Server
Minix3	Andrew S. Tanenbaum	2005	Minix2	3.1.7	2010	Free	BSD	Workstation
NetBSD	TheNetBSD Project	1993	386BSD	5.0.2	2010	Free	BSD	NetApp,Server,Workstation,Embedded system
NeXTStep	NeXT	1989	Unix	3.3	1995	Bundled with hardware, then sold separately	Proprietary	Workstation
NetWare	Novell	1985	S-Net	6.5 SP7	2007	$184 (single-user)	Proprietary	Server
OpenBSD	TheOpenBSD Project	1995	NetBSD 1.0	4.7	2010	Free	BSD	Server,NetApp,Workstation,Embedded system
OpenVMS	DEC (nowHP)	1977	RSX-11M	8.4	2010	only free for non-commercial use	Proprietary	Server,Workstation
OS/2	IBM andMicrosoft	1987	UNIX,Windows 3.x	4.52	2001	$300	Proprietary	Personal computer,Server
PC-BSD	PC-BSD Software	2006	FreeBSD^{[g 7]}	8.1	2010	Free	BSD	Personal computer,Workstation,Server
Plan 9	Bell Labs	1993	Unix	Fourth Edition	(Daily snapshots)	Free	LPL	Workstation,Server,Embedded system,HPC
QNX	QNX Software Systems	1982	Unix	6.4.1	2009	Commercial; it exists a free testing version that requires authorization code prior to installation.	Proprietary	Workstation,Server,Embedded system
Solaris	Sun	1992	SunOS	10 10/09	2008	Free	CDDL	Server,Workstation
OpenSolaris	Sun	2008	Solaris	2009.06	2009	Free	CDDL	Personal computer,Workstation,Server
Windows Server (NT family)	Microsoft	1993	MS-DOS,OS/2,Windows 3.x	Windows Server 2008 R2 (NT 6.1.7600)	2009	$469 Web Server; other editions dependent on number ofCALs purchased	Proprietary	Server,NetApp,Embedded system,HPC
Microsoft Windows (NT family)	Microsoft	1993	MS-DOS,OS/2,Windows 3.x	Windows 7 (NT 6.1.7600)	2009^{[g 8]}	Home Basic (Retail) $99.95, Home Premium (Retail) $119.95, Business (Retail) $299.95, Ultimate (Retail) $300.95^[1]	Proprietary	Workstation,Personal computer,Media center,Tablet PC,Embedded system
Microsoft Windows (Classic family)	Microsoft	1985	MS-DOS,Windows 1 and later	Windows ME (Win 4.90.3000)	2000^{[g 8]}	Outdated product. No longer for sale.	Proprietary	Personal computer,Media center
RISC OS	Acorn Computers,RISC OS Limited,Castle Technology Ltd	1989	ARTHUR, also theBBC Master OS	RISC OS 6.10 Select4i4 and RISC OS 5.13"	2008	Bundled with hardware, then sold separately at $127 (£70)	Proprietary	Educational software,Personal computer
ZETA	yellowTAB	2005	BeOS R5	1.2	2006	Discontinued	Proprietary	Personal computer,Media center,Workstation
STOP 6 / XTS-400	BAE Systems	2003	STOP 5 / XTS-300	6.4.U1	2007	Unknown; supplied to customers on-demand by BAE Systems	Proprietary	Server,Workstation
ReactOS	ReactOS development team	1996	Windows NT	0.3.11	2009	Free	GNU GPL,GNU LGPL	Workstation,Personal computer
z/OS	IBM	2000	OS/390	1.11	2009	Monthly License Charge (about $130 and up)	Proprietary	IBM mainframe
z/VM	IBM	2000	VM (operating system)	6.1	2009	Monthly License Charge	Proprietary	IBM mainframe
Name	Creator	First public release	Predecessor	Latest stable version	Latest release date	Cost/Availability	Preferredlicense^{[g 1]}	Target system type

↑^1.0^1.1Most OS distributions include bundled software with various other licenses.
↑GNU is a recursive acronym for GNU's Not Unix, which was chosen because its design isUnix-like, but differs from Unix by beingFree software and by not containing any Unix code.
↑Minix inspired the Linux kernel. No code from Minix was used to create the Linux kernel.
↑AlthoughLisa OS ran on the same (albeit a slower version) microprocessor and was developed byApple Computer at the same time asMac OS, they were developed as different projects, sharing only a similar GUI between them.http://folklore.org/StoryView.py?story=Hungarian.txt
↑Mac OS 7.6 was the firstMac OS operating system to be labeledMac OS. Operating systems prior to this were namedSystem Software 0.1 (available only to developers) throughSystem Software 7.5, and known as System #.# for short.
↑Mac OS versions up to 7.5.5 are available free of charge athttp://www.info.apple.com/support/oldersoftwarelist.html
↑PC-BSD uses FreeBSD as a base system with custom configuration and several desktop oriented tools to create an easy to use FreeBSD system for Desktops and Workstations.
↑^8.0^8.1Windows Vista was released to manufacturing on November 8, 2006, and was subsequently made available to software developers and businesses in November 2006, with retail availability following on January 30, 2007

Technical information[]

Name	Computer architectures supported	File systems supported	Kernel type	Source lines of code	GUI default is on^{[t 1]}	Package management	Update management	NativeAPIs^{[t 2]}	Non-native APIs supported through subsystems
AIX	POWER	JFS,JFS2,ISO 9660,UDF,NFS,SMBFS,GPFS	Monolithic		No	installp,RPM	Service Update Management Assistant (SUMA)	SysV,POSIX
AmigaOS Classic	68k	Proprietary (OFS,FFS,SFS,PFS),FAT,ISO 9660,UDF, many others via 3rd party drivers, such asSMBFS, etc.	Microkernel		Yes	Installer^{[t 3]} (almost not necessary)^{[t 4]}		Proprietary	UNIX (BSD) (available through 3rd partyixemul.library)
AmigaOS 4	PPC	Proprietary (OFS,FFS,SFS,PFS), JXFS,FAT,ISO 9660,UDF, many others via 3rd party drivers, such asSMBFS, etc.	Microkernel		Yes	Installer^{[t 3]} (almost not necessary)^{[t 4]}	AmiUpdate (almost not necessary)^{[t 5]}	Proprietary	UNIX (BSD) (available through 3rd partyixemul.library)
FreeBSD	x86,x86-64,PC98,SPARC,others	UFS2,ext2,ext3,FAT,ISO 9660,UDF,NFS,ReiserFS (read only),XFS (experimental),ZFS and others	Monolithic with modules		No	ports tree, packages	by source, network binary update (freebsdupdate)	POSIX,BSD	Mono, Java, Win16, Win32, Linux
Haiku	x86,68k	BFS (default),FAT,ISO 9660,ext3,NTFS	Hybrid		Yes	-	None	POSIX,BeOS API
HP-UX	PA-RISC,IA-64	VxFS,HFS,ISO 9660,UDF,NFS,SMBFS	Monolithic with modules		No	swinstall	swa (HP-UX Software Assistant)	SysV,POSIX
Inferno	x86,PPC,SPARC,Alpha,MIPS, others	Styx/9P2000, kfs,FAT,ISO 9660	Monolithic with modules,user space file systems		Yes	?	?	Proprietary
Linux	x86,x86-64,PPC,SPARC,Alpha,others	ext2,ext3,ext4,ReiserFS,FAT,ISO 9660,UDF,NFS, and others	Monolithic with modules	~ 9 million[1] (Kernel) lines of code for userland applications vary depending on the distribution	See:Comparison of Linux distributions			POSIX	Mono, Java, Win16, Win32
Mac OS Classic	68k,PPC	HFS+,HFS,MFS (Mac OS 8.0 and before),AFP,ISO 9660,FAT(System 7 and later),UDF	Monolithic with modules		Yes	None	Software Update (only in Mac OS 9)	Toolbox,Carbon (from version 8.1)
Mac OS X	PPC,x86,x86-64,ARM	HFS+ (default),HFS,UFS,AFP,ISO 9660,FAT,UDF,NFS,SMBFS,NTFS (read only),FTP,WebDAV,ZFS (experimental)	Hybrid	~86 million^[2]	Yes	Mac OS X Installer	Software Update	Carbon,Cocoa,Java,BSD/POSIX	Toolbox (only in versions up to Mac OS X 10.4, not supported on x86 architecture), Win16, Win32
Minix3	x86		Microkernel	4000	No			POSIX
NetBSD	x86,x86-64,ARM,MIPS,PPC,SPARC64,others	UFS,UFS2,ext2,FAT,ISO 9660,NFS,LFS, and others	Monolithic with modules		No^{[t 6]}	pkgsrc	by source or binary (using sysinst)	BSD,POSIX	Linux,others
NetWare	x86	NSS,NWFS,FAT,NFS,AFP,UDF,CIFS,ISO 9660	Hybrid		Yes	NWCONFIG.NLM,RPM,X11-based GUI installer	binary updates, ZENWorks for Servers,Red Carpet	Proprietary
OpenBSD	x86,x86-64,SPARC,68k,Alpha,VAX,others	ffs,ext2,FAT,ISO 9660,NFS, some others	Monolithic with modules		No^{[t 6]}	ports tree, packages	by source	BSD,POSIX
OpenVMS	VAX,Alpha,IA-64	Files-11 (ODS),ISO 9660,NFS,CIFS	Monolithic with modules		No	PCSI, VMSINSTAL	?	Proprietary	POSIX
OS/2	x86	HPFS,JFS,FAT,ISO 9660,UDF,NFS	Monolithic with modules		Yes	Feature Install and others	?	Proprietary,DOS API, Win16	Win32
PC-BSD	x86^{[t 7]}	UFS2,ext2,ext3,FAT,ISO 9660,UDF,NFS,ReiserFS (read only),XFS (experimental) and others	Monolithic with modules		Yes	ports tree, packages, PBI Graphical Installers	by PBI updates, source, network binary update (freebsdupdate)	BSD,POSIX	Win16, Win32
Plan 9	x86,Alpha,MIPS,PPC,SPARC, others	fossil/venti,9P2000, kfs,ext2,FAT,ISO 9660	Monolithic,user space file systems		Yes	None	replica	Proprietary (Unix-like)	POSIX compatibility layer
QNX	x86,SH-4,PowerPC,ARM,MIPS	QNX4, QNX6,ext2,FAT,ISO 9660,Joliet,NFS,CIFS, ETFS,UDF,HFS,HFS Plus,NTFS, and others.	Microkernel					POSIX,Java
ReactOS	x86,PowerPC	FAT	Hybrid	1-2 million	Yes	None	None	Win32,NT API
RISC OS	ARM (both 26 and 32-bit)	Acorn ADFS,Econet ANFS,FAT,ISO 9660, many others as loadable filesystems	Unprotected monotasking microkernel with large number of relocatable modules		Yes	Applications self-contained; hardware drivers often in ROM	!IyoUpWtch	Huge number ofSWI calls; extensive C libraries
Solaris	x86,x86-64,SPARC	UFS,ZFS,ext2,FAT,ISO 9660,UDF,NFS,QFS, some others	Monolithic with modules		Yes	SysV packages (pkgadd)	Sun Connection	SysV,POSIX,GTK,Java	Win16, Win32, Mono, Linux^[3]
OpenSolaris	x86,x86-64,SPARC(AI)	UFS,ZFS,ext2,FAT,ISO 9660,UDF,NFS,QFS, some others	Monolithic with modules	~10 million	Yes	Image Packaging System (pkg),SysV packages (pkgadd)	Image Packaging System	SysV,POSIX,GTK,Java	Win16, Win32, Mono, Linux^[3]
STOP 6 / XTS-400	x86	Proprietary	Monolithic		No	RPM for some untrusted applications	Binary updates via postal mail and proprietary tools	someSysV, somePOSIX, some Linux, some proprietary
Windows Server (NT family)	x86,x86-64,IA-64	NTFS,FAT,ISO 9660,UDF; 3rd-party drivers supportext2,ext3,reiserfs^{[t 8]}, andHFS	Hybrid	~45 million^[4]	Yes	MSI, custom installers	Windows Update	Win32,NT API	DOS API,Win16 (only in 32-bit versions),POSIX,.NET
Windows (NT family)	x86,x86-64	NTFS,FATexFATISO 9660,UDF; 3rd-party drivers supportext2,ext3,reiserfs^{[t 8]},HFS+,FATX, andHFS	Hybrid	~ 40(XP)/64(Vista) million^{[citation needed]}	Yes	MSI, custom installers	Windows Update	Win32,NT API	DOS API,Win16 (only in 32-bit versions),POSIX,.NET
ZETA	x86	BFS (default),FAT,ISO 9660,UDF,HFS,AFP,ext2,CIFS,NTFS (read only),ReiserFS (read only, up to v3.6)	Hybrid		Yes	SoftwareValet, script-based installers	None	POSIX,BeOS API
z/OS	z/Architecture	VSAM catalogs, HFS, zFS, etc.	Monolithic		No	SMP/E	SMP/E	Access methods, etc.	POSIX
Name	Computer architectures supported	File systems supported	Kernel type	Source lines of code	GUI default is on^{[t 1]}	Package management	Update management	NativeAPIs^{[t 2]}	Non-native APIs supported through subsystems

↑^1.0^1.1Operating systems where the GUI is not installed and turned on by default are often bundled with an implementation of theX Window System, installation of which is usually optional.
↑^2.0^2.1Most operating systems use proprietary APIs in addition to any supported standards.
↑^3.0^3.1Amiga OS features since OS 2.0 version a standard centralized Install utility calledInstaller, which could be used by any software house to install programs. It works as aLISP language interpreter, and install procedures could be listed as simple text.AmigaOS can also benefit of a 3rd party copyrighted library calledXAD that is available for all POSIX (Unix,Linux,BSD, and forAmigaOS,MorphOS, etc.). This library is freely distributable and publicly available onAminet Amiga centralized repository of all Open Source or Free programs and utilities. XAD.Library, complete with GUI Voodoo-X, is based on modules and capable to manage over 300 compression methods and package systems (Voodoo-X GUI supports 80 package systems), including those widely accepted as standards such as.ZIP,.CAB,.LHA,.LZX,.RPM, etc.
↑^4.0^4.1A standardAmigaOS installation requires usually only few files (typically 3 to 10 files) to be copied in their appropriate directory, and libraries and language files for national localization to be put in their standard OS directories. Any Amiga user with some minimal experience knows where these files should be copied and could perform programs installations by hand.
↑AmiUpdate is capable to updateAmigaOS files and also all Amiga programs which are registered to use the same update program that is standard for Amiga. UpdatingAmigaOS requires only few libraries to be put in standard OS location (for example all libraries are stored in "Libs:" standard virtual device and absolute path finder for "Libs" directory, Fonts are all in "Fonts:" absolute locator, the files for language localization are all stored in "Locale:" and so on). This leaves Amiga users with a minimal knowledge of the system almost free to perform by hand the update of the system files.
↑^6.0^6.1NetBSD and OpenBSD include theX Window System as base install sets, managed in their respective main source repository, including local modifications. Packages are also provided for more up-to-date versions which may be less tested.
↑only i686 CPU
↑^8.0^8.1Windows can read and write with Ext2 and Ext3 file systems only when a driver fromFS-driver orext2fsd is installed. However, usingExplore2fs, Windows can read from, but not write to, Ext2 and Ext3 file systems. Windows can also access ReiserFS throughrfstool and related programs.

Security[]

	Resource access control	Subsystem isolation mechanisms	Integrated firewall	Encrypted file systems	No execute (NX) page flag		Known unpatched vulnerabilities (severity is accounted for)^{[s 1]}
					No execute (NX) page flag		Secunia					SecurityFocus
					Hardware	Emulation	Extremely critical (number / oldest)	Highly critical (number / oldest)	Moderately critical (number / oldest)	Less critical (number / oldest)	Not critical (number / oldest)	Total (number / oldest)
AIX 6.1.3	Unix,ACLs	chroot	IP Filter,IPsec VPNs, basic IDS	Yes	Yes^{[s 2]}	N/A	0	0	0	0	0	Unknown
FreeBSD 8.0-RELEASE	Unix,ACLs,MAC	chroot,jail,MAC Partitions	IPFW2,IPFilter,PF	Yes	Yes	Yes^{[s 3]}	Unknown					Unknown
HP-UX 11.31	Unix,ACLs	chroot	IPFilter	No	?	0	0	3 [http://secunia.com/advisories/11969/ IMPLEMENTATION OF DATE -->June 30, 2004; 21 years ago (2004-06-30)}}]	1 [http://secunia.com/advisories/7702/ IMPLEMENTATION OF DATE -->December 12, 2002; 22 years ago (2002-12-12)}}]	0	Unknown
Inferno	Unix	Namespaces,Capability-based security, nosuperuser orsetuid bit	?	?	No	No	Unknown					Unknown
Linux 2.6.33	Unix,ACLs^{[s 4]},MAC	chroot,Capability-based security^{[s 5]},seccomp,SELinux	Netfilter / Varied by distribution	Yes	Yes	Yes	0	0	0	5 [http://secunia.com/advisories/11931/ IMPLEMENTATION OF DATE -->June 24, 2004; 21 years ago (2004-06-24)}}]	6 [http://secunia.com/advisories/14718/ IMPLEMENTATION OF DATE -->April 4, 2005; 20 years ago (2005-04-04)}}]	Unknown
Mac OS 9.2.2	No	No	No	No	No	No	0	0	0	0	0	Unknown
Mac OS X 10.6.3	Unix,ACLs^{[s 6]}	chroot	ipfw	Yes	Yes (as of 10.5, X64 Only)	Yes (Intel Only)	0	0	1 [http://secunia.com/advisories/34424/ IMPLEMENTATION OF DATE -->April 14, 2009; 16 years ago (2009-04-14)}}]	2 [http://secunia.com/advisories/23653/ IMPLEMENTATION OF DATE -->January 8, 2007; 18 years ago (2007-01-08)}}]	4 [http://secunia.com/advisories/23062/ IMPLEMENTATION OF DATE -->November 22, 2006; 19 years ago (2006-11-22)}}]	Unknown
NetBSD 5.0.1	Unix,Veriexec, PaX, kauth	chroot,systrace, kauth	IPFilter,PF	Yes	Yes	No	Unknown					Unknown
NetWare 6.5 SP7	Directory-enabledACLs	Protected Address Spaces	IPFLT.NLM	Yes	Yes	No	0	0	0	2 [http://secunia.com/advisories/10100/ IMPLEMENTATION OF DATE -->October 30, 2003; 22 years ago (2003-10-30)}}]	0	Unknown
OES-Linux	Directory-enabledACLs	chroot	IPFilter	Yes	Yes	No	Unknown					Unknown
OpenBSD 4.6	Unix	chroot,systrace	PF	Yes	Yes	Yes	Unknown					Unknown
OpenVMS 8.4	ACLs,Privileges	logical name tables	?	?	Yes	?	0	0	0	0	0	0
OS/2 /eComStation	ACLs^{[s 7]}	No	IP Filter	No	?		0	0	0	0	0	0
PC-BSD	Unix,ACLs,MAC	chroot,jail,MAC Partitions	IPFW2,IPFilter,PF	Yes^{[s 8]}	?		Unknown					Unknown
Plan 9	Unix (?)	Namespaces,Capability-based security, nosuperuser orsetuid bit	ipmux	Yes	No	No	Unknown					Unknown
QNX 6.4.1	Unix	?	IP Filter	?	?		0	0	0	5 [http://secunia.com/advisories/7562/ IMPLEMENTATION OF DATE -->November 20, 2002; 23 years ago (2002-11-20)}}]	1 [http://secunia.com/advisories/7463/ IMPLEMENTATION OF DATE -->November 7, 2002; 23 years ago (2002-11-07)}}]	Unknown
Solaris 10	Unix,RBAC,ACLs,Least privilege,Trusted Extensions	chroot,Containers^{[s 9]},Logical Domains	IPFilter	Yes^{[s 10]}	Yes	No	0	2 [http://secunia.com/advisories/27423/ IMPLEMENTATION OF DATE -->October 31, 2007; 18 years ago (2007-10-31)}}]	4 [http://secunia.com/advisories/27328/ IMPLEMENTATION OF DATE -->October 23, 2007; 18 years ago (2007-10-23)}}]	2 [http://secunia.com/advisories/36668/ IMPLEMENTATION OF DATE -->September 10, 2009; 16 years ago (2009-09-10)}}]	1 [http://secunia.com/advisories/22714/ IMPLEMENTATION OF DATE -->November 6, 2006; 19 years ago (2006-11-06)}}]	Unknown
OpenSolaris 2009.6	Unix,RBAC,ACLs,Least privilege,Trusted Extensions	chroot,Containers^{[s 9]},Logical Domains	IPFilter	Yes^{[s 10]}	Yes	No	Unknown					Unknown
Windows Server 2008 R2	ACLs,Privileges,RBAC	Win32 WindowStation, Desktop, Job objects	Windows Firewall	Yes	Yes	Yes	0	0	0	2 [http://secunia.com/advisories/38365/ IMPLEMENTATION OF DATE -->February 9, 2010; 15 years ago (2010-02-09)}}]	0	Unknown
Windows 7	ACLs,Privileges,RBAC	Win32 WindowStation, Desktop, Job objects	Windows Firewall	Yes	Yes^{[s 11]}	Yes^{[s 12]}	0	0	0	1 [http://secunia.com/advisories/38365/ IMPLEMENTATION OF DATE -->February 9, 2010; 15 years ago (2010-02-09)}}]	0	Unknown
Windows Vista Ent SP2	ACLs,Privileges,RBAC	Win32 WindowStation, Desktop, Job objects	Windows Firewall	Yes	Yes^{[s 11]}	Yes^{[s 12]}	0	0	0	3 [http://secunia.com/advisories/31824/ IMPLEMENTATION OF DATE -->September 10, 2008; 17 years ago (2008-09-10)}}]	3 [http://secunia.com/advisories/24245/ IMPLEMENTATION OF DATE -->February 23, 2007; 18 years ago (2007-02-23)}}]	Unknown
Windows XP Pro SP3	ACLs	Win32 WindowStation, Desktop, Job objects	Windows Firewall	Yes (With NTFS)	Yes^{[s 11]}	Yes^{[s 12]}	0	2 [http://secunia.com/advisories/37592/ IMPLEMENTATION OF DATE -->December 8, 2009; 15 years ago (2009-12-08)}}]	6 [http://secunia.com/advisories/7793/ IMPLEMENTATION OF DATE -->December 30, 2002; 22 years ago (2002-12-30)}}]	17 [http://secunia.com/advisories/7824/ IMPLEMENTATION OF DATE -->January 7, 2003; 22 years ago (2003-01-07)}}]	13 [http://secunia.com/advisories/7121/ IMPLEMENTATION OF DATE -->September 18, 2002; 23 years ago (2002-09-18)}}]	Unknown
ZETA	Unix^{[s 13]}	No	No	No	No	No	Unknown
STOP 6 / XTS-400^{[s 14]}	Unix,Multilevel security,Biba mandatory integrity,ACLs,Privileges, subtype mechanism	Multilevel security,Biba Integrity Model, subtype mechanism	No	No	No	No	Unknown
z/OS	RACF	RACF, key-protected address spaces	z/OS IPSecurity	Optional	Yes (key-protected address spaces)	Yes	0	0	0	0	0	Unknown
	Resource access control	Subsystem isolation mechanisms	Integrated firewall	Encrypted file systems	Hardware	Emulation	Extremely critical (number / oldest)	Highly critical (number / oldest)	Moderately critical (number / oldest)	Less critical (number / oldest)	Not critical (number / oldest)	Total (number / oldest)
					No execute (NX) page flag		Secunia					SecurityFocus
					No execute (NX) page flag		Known unpatched vulnerabilities (severity is accounted for)^{[s 1]}

↑^1.0^1.1Comparison of known unpatched vulnerabilities based onSecunia &SecurityFocus reports with severity ofNot critical & above. Update lists manually with oldest published date(s).
↑AIX use thePowerPC architecture which offer page-level protection mechanism. Since AIX version 5300-03 (5.3), this feature can be activated using thesedmgr command.
↑The GCC stack protection (a.k.a. ProPolice Stack-Smashing Protector) has been enabled in base system since FreeBSD 8.0-RELEASE.
↑POSIXACL support is included in Linux 2.6, but requires a file system capable of storing them (such asext3,XFS orReiserFS).
↑Ajail mechanism is available separately in theLinux-VServer project, but is not integrated into any mainline Linux kernel.
↑ACLs were added toMac OS X beginning with version 10.4.
↑ACLs are available only inOS/2 Server versions withHPFS386 filesystem.
↑Additionally swap space may be encrypted during installation, uses memory based tmp file storage by default.
↑^9.0^9.1"Solaris Containers" (including "Zones") are ajail-type mechanism introduced withSolaris 10.
↑^10.0^10.1ThroughZFS
↑^11.0^11.1^11.2Available on XP sp2, 2003 sp1 and newer.
↑^12.0^12.1^12.2By default, software-enforcedDEP helps protect only limited system binaries.
↑Zeta has full Unix file permissions, but the OS is single user, and users always run as superuser.
↑STOP 6 is certified underCommon Criteria atEAL5+.

Commands[]

ForPOSIX compliant (or partly compliant) systems likeFreeBSD,Linux,Mac OS X orSolaris, the basic commands are the same because they are standardized.

description	FreeBSD	Linux	MacOSX	Solaris	Windows (cmd)	Windows (powershell)
list directory	ls	ls	ls	ls	dir	dir & ls & Get-ChildItem
clear console	clear	clear	clear	clear	cls	clear
copy file(s)	cp	cp	cp	cp	copy	cp & Copy-Item
move file(s)	mv	mv	mv	mv	move	mv & Move-Item
rename file(s)	mv	mv, rename	mv	mv	ren, rename	ren, mv
delete file(s)	rm	rm	rm	rm	del (erase)	rm & Remove-Item
delete directory	rmdir	rmdir	rmdir	rmdir	rd (rmdir)	rm -r & rmdir
create directory	mkdir	mkdir	mkdir	mkdir	md (mkdir)	mkdir
change current directory	cd	cd	cd	cd	cd (chdir)	cd & Set-Location
run shell script with new shell	sh file.sh	sh file.sh	sh file.sh	sh file.sh	cmd /c file.cmd	?
kill processes	kill, killall	pkill, killall	kill	kill, pkill	taskkill	taskkill
change process priority	nice	nice	nice	nice	start /low, start /normal, start /high, start /realtime	?
change io priority	?	ionice	?	?	?	?
create file system	newfs	mkfs	?	newfs	format	?
file system check and recovery	fsck	fsck	fsck	fsck	chkdsk	?
create software raid	atacontrol, gmirror	(mdadm—create)	?	metainit, zfs create	?	?
mount device	mount	mount	diskutil mount	mount	mountvol	mount & New-PSDrive
unmount device	umount	umount	diskutil unmount(disk)	umount	mountvol /d	Remove-PSDrive
mount file as block device	vnconfig + mount	mount -o loop	?	?	?	?
show network configration	ifconfig	ifconfig	ifconfig	ifconfig	ipconfig	ipconfig
show network route	route	route	?	route	route	?
trace network route	traceroute	traceroute	traceroute	traceroute	tracert	tracert
trace network route with pings	?	(mtr)	?	?	pathping	pathping
description	FreeBSD	Linux	MacOSX	Solaris	Windows (cmd)	Windows (powershell)