Browse Definitions:
Definition

Darwin

Darwin is the basic "core" of OS X , the operating system for Apple's Macintosh , and combines two well-known programs, the Mach kernel and FreeBSD, in a strategic move by Apple to make its future operating systems based on and available to others as open source code. Traditionally, major computer makers have treated their operating systems (and most applications) as proprietary. Making the source code available freely to outside developers is designed to encourage any developer to create improvements or fix problems. In addition to Darwin, OS X includes its own proprietary user interfaces and other special features that are not offered as open source.

Historically, a Macintosh operating system has required a special investment in learning for application developers. For OS X, Apple chose to build a new operating system based on a variation of the open UNIX operating system, a system that is very stable and also familiar to a large body of developers. Apple chose the FreeBSD variation of BSD, itself a packaging of a UNIX system, for its OS X core, Darwin, and in turn made Darwin freely available for modification and reuse. Apple's own developers work with other developers to enhance and fix what is now essentially a public enterprise.

Unlike earlier Macintosh operating systems, the Darwin core of OS X, provides preemptive multitasking rather than the less flexible time-slicing approach to multitasking and protected memory, which ensures that any application running will not be able to overlay the memory assigned to another application. Darwin also incorporates the Apache Web server and support for both Macintosh and UNIX file systems.

Darwin runs on Intel processor -based computers as well as PowerPC -based Macintosh computers. Apple expects that Darwin will eventually become the core of a completely separate open source operating system, similar to Linux .

This was last updated in September 2005

Continue Reading About Darwin

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

  • pure risk (absolute risk)

    Pure risk, also called absolute risk, is a category of threat that is beyond human control and has only one possible outcome if ...

  • risk assessment

    Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business.

SearchSecurity

  • security information and event management (SIEM)

    Security information and event management (SIEM) is an approach to security management that seeks to provide a holistic view of ...

  • polymorphic virus

    A polymorphic virus is a harmful, destructive or intrusive type of malware that can change or 'morph,' making it difficult to ...

  • cyberterrorism

    According to the U.S. Federal Bureau of Investigation, cyberterrorism is any 'premeditated, politically motivated attack against ...

SearchHealthIT

  • accountable care organization (ACO)

    An accountable care organization (ACO) is an association of hospitals, healthcare providers and insurers in which all parties ...

  • patient engagement

    Patient engagement is an ideal healthcare situation in which people are well-informed about -- and motivated to be involved -- in...

  • personal health record (PHR)

    A personal health record (PHR) is a collection of health-related information that is documented and maintained by the individual ...

SearchDisasterRecovery

  • business continuity and disaster recovery (BCDR)

    Business continuity and disaster recovery (BCDR) are closely related practices that describe an organization's preparation for ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...

SearchStorage

SearchSolidStateStorage

  • hybrid hard disk drive (HDD)

    A hybrid hard disk drive is an electromechanical spinning hard disk that contains some amount of NAND Flash memory.

Close