.pkg (package) is a

filename extension A filename extension, file name extension or file extension is a suffix to the name of a computer file (e.g., .txt, .docx, .md). The extension indicates a characteristic of the file contents or its intended use. A filename extension is typically ...

used for several

file format A file format is a standard way that information is encoded for storage in a computer file. It specifies how bits are used to encode information in a digital storage medium. File formats may be either proprietary or free. Some file form ...

s that contain packages of

software Software is a set of computer programs and associated documentation and data. This is in contrast to hardware, from which the system is built and which actually performs the work. At the lowest programming level, executable code consis ...

and other files to be installed onto a certain device,

operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may al ...

, or filesystem, such as the

macOS macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac (computer), Mac computers. Within the market of ...

, iOS,

PlayStation Vita The PlayStation Vita (PS Vita, or Vita) is a handheld video game console developed and marketed by Sony Interactive Entertainment. It was first released in Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island co ...

PlayStation 3 The PlayStation 3 (PS3) is a home video game console developed by Sony Computer Entertainment. The successor to the PlayStation 2, it is part of the PlayStation brand of consoles. It was first released on November 11, 2006, in Japan, Novem ...

, and

PlayStation 4 The PlayStation 4 (PS4) is a home video game console developed by Sony Interactive Entertainment. Announced as the successor to the PlayStation 3 The PlayStation 3 (PS3) is a home video game console developed by Sony Computer Entert ...

. * The

and iOS operating systems made by

Apple An apple is an edible fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) dissemin ...

use .pkg extensions for Apple software packages using the Xar format internally. *

Sony PlayStation 3 The PlayStation 3 (PS3) is a home video game console developed by Sony Interactive Entertainment, Sony Computer Entertainment. The successor to the PlayStation 2, it is part of the PlayStation brand of consoles. It was first released on Novemb ...

, Sony PlayStation 4 — used for installation of

and

software, applications, homebrew, and DLC from the PlayStation Store * Solaris, or SunOS

(OS) and

illumos Illumos (stylized as illumos) is a partly free and open-source Unix Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started ...

- Denotes software packages that can be installed, removed and tracked using the pkgadd, pkgrm, and pkginfo commands. Solaris is a derivative of the

AT&T AT&T Inc. is an American multinational telecommunications Telecommunication is the transmission of information by various types of technologies over wire, radio Radio is the technology of signaling and communicating using radio ...

UNIX Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, ...

OS, and the .pkg extension was also used on AT&T UNIX System V OS. * AT&T UNIX System V .pkg files are cpio archives that contain specific file tree structures. *

Symbian Symbian is a discontinued mobile operating system (OS) and computing platform designed for smartphones. It was originally developed as a proprietary software Proprietary software is software that is deemed within the free and open-sour ...

use .pkg files to store configuration information used to generate .sis installer packages. *

BeOS BeOS is an operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficien ...

Used .pkg files in the 90's as part of their software package platform. Be Inc. bought Starcode Software Inc. and acquired their packaging tools. * Apple Newton operating system used files ending in .pkg for Newton applications and software. As a result, when seen from the Mac OS X Finder, Newton applications appear the same as Mac OS X Installer packages, however they do not share their file format. * PTC/CoCreate 3D Modeling application use .pkg files to store model files. This .pkg file uses the zip file format. *

Microsoft Microsoft Corporation is an American multinational corporation, multinational technology company, technology corporation producing Software, computer software, consumer electronics, personal computers, and related services headquartered at th ...

is said to use .pkg files for profile storage on

Xbox Live The Xbox network, formerly and still sometimes branded as Xbox Live, is an online In computer technology and telecommunications, online indicates a state of connectivity and offline indicates a disconnected state. In modern terminology, th ...

. * L3 Avionics systems use some .pkg files for software updates.

References

{{DEFAULTSORT:.pkg PKG

See also

References