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Mac OS X
A screenshot of Mac OS X v10.4 Tiger
DeveloperApple Inc.
OS familyBSD/Darwin/NEXTSTEP
Working stateCurrent
Source modelClosed source (with open source components)
Latest release10.4.8 / September 29 2006
Latest preview15.2 beta[1] (October 23, 2024; 10 days ago (2024-10-23)) [±] ,
Platformsx86, x86-64, PowerPC
Kernel typeHybrid kernel
Default
user interface		Graphical user interface (Aqua)
Licenseproprietary
Official websitehttp://www.apple.com/macosx/

Mac OS X (official IPA pronunciation: /mæk.oʊ.ɛs.tɛn/) is a line of proprietary, graphical operating systems developed, marketed, and sold by Apple Inc., the latest of which is pre-loaded on all currently shipping Macintosh computers. Mac OS X is the successor to the original Mac OS, which had been Apple's primary operating system since 1984. Unlike its predecessor, Mac OS X is a Unix-like operating system built on technology that had been developed at NeXT through the second half of the 1980s and up until Apple purchased the company in early 1997.

The operating system was first released in 1999 as Mac OS X Server 1.0, with a desktop-oriented version (Mac OS X v10.0) following in March 2001. Since then, four more distinct "end-user" and "server" editions of Mac OS X have been released, the most recent being Mac OS X v10.4, which was first made available in April 2005. Releases of Mac OS X are named after big cats; OS X v10.4 is usually referred to by Apple and users as "Tiger".

The server edition, Mac OS X Server, is architecturally identical to its desktop counterpart but usually runs on Apple's line of Macintosh server hardware. Mac OS X Server includes workgroup management and administration software tools that provide simplified access to key network services, including a mail transfer agent, a Samba server, an LDAP server, a domain name server, and others.

History

Main article: History of Mac OS X

Despite its branding as simply "version 10" of the Mac OS, Mac OS X has a history that is almost completely independent of the earlier Mac OS releases.

Mac OS X is based on the Mach kernel and is derived from the BSD implementation of Unix in NEXTSTEP. NEXTSTEP was the object-oriented operating system developed by Steve Jobs's NeXT company after he left Apple in 1985.[2] Meanwhile, during the years without Jobs at the helm, Apple attempted to create a "next-generation" operating system of its own through the Taligent and Copland projects, with little success.

Eventually, NeXT's OS — called OPENSTEP at the time — was selected to form the basis for Apple's next OS, and Apple purchased NeXT outright.[3] Steve Jobs came back to Apple as interim CEO with the purchase of NeXT by Apple, and later returned to the leadership of the company, shepherding the transformation of the programmer-friendly OPENSTEP into a system that would be welcomed by Apple's primary market of home users and creative professionals. The project was first known as Rhapsody, and was later renamed to Mac OS X.[4]

With each new version, Mac OS X evolved away from a focus on backward compatibility with the earlier versions of Mac OS toward an emphasis on "digital lifestyle" applications such as the iLife suite, enhanced business applications (iWork), and integrated home entertainment (the Front Row media center). Each version also included modifications to the general interface, such as the brushed metal appearance that was added in version 10.2, the unified appearance in version 10.4, and the slight differences in the "streetlight" buttons between versions.

Description

File:Tiger-retail-new-boxes.gif
The original (left) and revised (right) retail packaging for Mac OS X v10.4 "Tiger"

Mac OS X was a radical departure from previous Macintosh operating systems; its underlying code base is completely different from previous versions. Its core, named Darwin, is an open source, Unix-like operating system built on top of the XNU kernel, with standard Unix facilities available from the command line interface. Apple layered over Darwin a number of proprietary components, including the Aqua interface and the Finder, to complete the GUI-based operating system which is Mac OS X.

Mac OS X included a number of features intended to make the operating system more stable and reliable than Apple's previous operating systems. Pre-emptive multitasking and memory protection, for example, improved the ability of the operating system to run multiple applications simultaneously without them interrupting or corrupting each other.[5] Many aspects of Mac OS X's architecture are derived from OPENSTEP, which was designed with portability in mind, thus easing the transition from one platform to another. For example, NEXTSTEP was ported from the original 68k-based NeXT workstations to other architectures before NeXT was purchased by Apple, and OPENSTEP was subsequently ported to the PowerPC architecture as part of the Rhapsody project.

The most visible change was the Aqua theme. The use of soft edges, translucent colors, and pinstripes — similar to the hardware design of the first iMacs — brought more texture and color to the interface than OS 9's "Platinum" appearance had offered. Numerous users of the older versions of the operating system decried the new look as "cutesy" and lacking in professional polish.[6] However, Aqua has been said to be a bold and innovative step forward in a time when user interfaces were seen as being "dull and boring".[7] Despite the controversy, the look was instantly recognizable, and even before the first version of Mac OS X was released, third-party developers started producing skins for customizable applications which mimicked the Aqua appearance. To some extent, Apple has used the successful transition to this new design as leverage, at various times threatening legal action against people who make or distribute software with an interface the company claims is derived from its copyrighted design.[8]

Mac OS X includes its own software development tools, most prominently an integrated development environment called Xcode. Xcode provides interfaces to compilers that support several programming languages including C, C++, Objective-C, and Java. For the Apple Intel Transition, it was modified so that developers could easily create a universal binary to remain compatible with both the Intel-based and PowerPC-based Macintosh.

Compatibility

Software

To permit a smooth transition from Mac OS 9 to Mac OS X, the Carbon Application Programming Interface (API) was created. Applications written with Carbon can run natively on both systems. On the other hand, as mentioned before, Mac OS X inherited from OPENSTEP's APIs, which are not backward compatible with earlier versions of Mac OS. These APIs are now referred by Apple as Cocoa. This heritage is highly visible for Cocoa developers, since most Cocoa class names begin with the "NS" prefix, for NEXTSTEP.

Mac OS X used to support the Java Platform as a "first class citizen" — in practice this means that applications written in Java fit as neatly into the operating system as possible while still being cross-platform, and that graphical user interfaces written in Swing look almost exactly like native Cocoa interfaces. Traditionally, Cocoa programs have been mostly written in Objective-C, with Java as an alternative. However, on July 11 2005, Apple announced that "features added to Cocoa in Mac OS X versions later than 10.4 will not be added to the Cocoa-Java programming interface."[9]

Because Mac OS X is, unlike its predecessors, based on UNIX, most software packages written for BSD or Linux can be recompiled to run on it. Projects such as Fink, MacPorts and Pkgsrc offer a service similar to APT on Debian, providing precompiled or preformatted packages for many standard packages. Since version 10.3, Mac OS X has included X11.app, the company's version of the X Window System graphical interface for Unix applications, as an optional component during installation.[10] Apple's implementation is based on the X11 Licensed XFree86 4.3 and X11R6.6, with a window manager which is similar to the Mac OS X look, has a fairly good integration with Mac OS X (see Criticisms section) and uses the native Quartz rendering system. Earlier versions of Mac OS X can also run X11 applications using XDarwin.

Hardware

For the early releases of Mac OS X, the standard hardware platform supported was the full line of Macintosh computers (laptop, desktop, or server) based on PowerPC G3, G4, and G5 processors. Later versions of Mac OS X discontinued support for some older hardware; for example, Panther does not support "beige" G3s, and Tiger does not support systems that pre-date Apple's introduction of FireWire ports.[11] However, tools such as XPostFacto and patches applied to the installation disc have been developed by third parties to enable installation of newer versions of Mac OS X on systems not officially supported by Apple, including some pre-G3 systems. Except for features requiring specific hardware (e.g. graphics acceleration, DVD writing), the operating system offers the same functionality on all supported hardware.

PowerPC versions of Mac OS X retain compatibility with older Mac OS applications by providing an emulation environment called Classic, which allows users to run Mac OS 9 as a process within Mac OS X, so that most older applications run as they would under the older operating system. Nevertheless, Classic is not supported on newer Intel-based Macs.

Main article: Apple Intel transition

In April 2002, eWeek reported a rumor that Apple had a version of Mac OS X code-named Marklar which ran on Intel x86 processors. The idea behind Marklar was to keep Mac OS X running on an alternative platform should Apple become dissatisfied with the progress of the PowerPC platform.[12] These rumors subsided until late in May 2005, when various media outlets, such as the Wall Street Journal[13] and CNET[14] reported that Apple would unveil Marklar in the coming months.

On June 6 2005, Steve Jobs confirmed these rumors when he announced in his keynote address at the annual Apple Worldwide Developers Conference that Apple would be making the transition from PowerPC to Intel processors over the following two years, and that Mac OS X would support both platforms during the transition. The last time that Apple switched CPU families — from the Motorola 68K CPU to the IBM/Motorola PowerPC — Apple included a Motorola 68K emulator in the new OS that made almost all 68K software work automatically on the new hardware. Apple has supported the 68K emulator for 11 years; however, Apple will be dropping support for the 68K emulator during the transition to Intel CPUs. Included in the new OS for the Intel-based Macs is Rosetta, a binary translation layer which enables software compiled for PowerPC Mac OS X to run on Intel Mac OS X machines. However, Apple dropped support for Classic mode on the new Intel Macs. Third party emulation software such as Mini vMac, Basilisk II and SheepShaver provides support for some early versions of Mac OS. A new version of Xcode and the underlying command-line compilers support building universal binaries that will run on either architecture.[15]

Currently, a lot of software is available only for PowerPC, and is supported with Rosetta. However, Apple encourages developers to produce universal binaries with support for both PowerPC and x86.[16] Universal binary software should run faster on Intel-based Macs than PowerPC-only software running on Rosetta. Moreover, some PowerPC software, such as kernel extensions and System Preferences plugins, are not supported on Intel Macs. While Intel Macs will be able to run PowerPC, x86 and universal binaries, PowerPC Macs will only support universal and PowerPC builds.

Support for the PowerPC platform will remain in version 10.5. Jobs also confirmed rumors that Apple has had versions of Mac OS X running on Intel processors for most of its developmental life. Such cross-platform capability already existed in Mac OS X's lineage, as said earlier; OPENSTEP was ported to many architectures, including x86, and Darwin included support for both PowerPC and x86. Although Apple stated that Mac OS X would not run on Intel-based personal computers aside from its own, a hacked version of the OS compatible with conventional x86 hardware has been developed by the OSx86 community and is available illegally through file-sharing networks.

Prominent features

File:Dashboardanim.gif
Dashboard allows for miniature programs called "Widgets" to be superimposed over the desktop. When activated, the Dashboard "flies" onscreen as shown above.
  • Quartz's internal imaging model correlates well with the Portable Document Format (PDF) imaging model, making it easy to output PDF to multiple devices.
  • Full-color, continuously scalable icons.
  • Drop shadows around window and isolated text elements to provide a sense of depth.
  • Global application Services menu - spell checker, special characters palette, color picker, font chooser and dictionary.
  • Anti-aliasing of widgets, text, graphics and window elements.
  • New interface elements including sheets (document modal dialog boxes attached to specific windows) and drawers.
  • Interweaving windows of different applications (not necessarily adjacent in the visible stacking order).
  • ColorSync color matching built into the core drawing engine, for print and multimedia professionals.
  • OpenGL composites windows onto the screen to allow hardware accelerated drawing. This technology (introduced in version 10.2) is called Quartz Extreme.
  • Dashboard (introduced in version 10.4) supports small applications called desktop widgets that can be called up and dismissed in one keystroke.
  • Exposé (introduced in version 10.3) — instantly display all open windows as thumbnails for easy navigation to different tasks, display all open windows as thumbnails from the current application, and hide all windows to access the desktop.
  • Pervasive use of Unicode throughout the operating system.
  • Straightforward architecture for localization of applications and other code, fully separating language dependencies from the core code of a program.
  • FileVault (introduced in version 10.3) encrypts the user's Home folder with Advanced Encryption Standard (AES) 128-bit keys.
  • Spotlight search technology (introduced in version 10.4) allows rapid real-time searches of data files, mail messages, photos, and other information, based on item properties (meta data) and/or content.
  • Automator (introduced in version 10.4) — an application designed to create an automatic work-flow for different tasks.
  • Smart Folders (introduced in version 10.4) allow for dynamically updated folders depending on a set criteria.
  • A well defined set of Human Interface Guidelines followed by almost all applications giving them intuitive, consistent user interface and keyboard shortcuts.
  • Xgrid allows networked Macs to form a distributed computing system.
  • Built in virtual file system images .dmg supporting encryption and compression, and optionally read/write capability.
  • Integrated Sync Services (introduced in version 10.4) allows applications to access a centralized extensible database for various elements of user data, including calendar and contact items. The operating system manages conflicting edits and data consistency.

Pricing

Mac OS X comes included in the price for new Macs. Minor upgrades are free and can be downloaded using Software Update. Major upgrades cost US$129 (CAD$149, UK £89) from Apple. There is also a US$199 (CAD$249, UK £139) "Family Pack" version of Mac OS X that comes with 5 licenses for home users who have more than one Mac at home. Developers can register for free with the Apple Developer Connection (ADC) to download developer tools such as Xcode and documentation. ADC also offers several for-pay plans which include "testing and development only" licenses for both shipping and pre-release versions of Mac OS X. Student and educator pricing on Mac OS X software is roughly 10% to 50% lower than standard retail pricing. The Mac OS X Server 10-client license costs US$499 (UK £349) and an unlimited client license is US$999 (UK £699) as of January 7, 2007.

Versions

The character X is a Roman numeral and is officially pronounced "ten".[17] It is the next logical release following the numbering of previous Macintosh operating systems such as Mac OS 8 and Mac OS 9. However, it is common to hear it pronounced as the letter "X".

Mac OS X versions are named after big cats. Prior to its release, version 10.0 was code named "Cheetah" internally at Apple, and version 10.1 was code named internally as "Puma". After the immense buzz surrounding version 10.2, codenamed "Jaguar", Apple's product marketing began openly using the code name to promote the operating system. 10.3 was similarly marketed as "Panther". Version 10.4 is marketed as "Tiger". "Leopard" has been announced as the name for the next release of the operating system, version 10.5. It could be noted that while "Panther", "Tiger" and "Leopard" are registered as trademarks of Apple, "Cheetah", "Puma" and "Jaguar" have never been registered. Apple has also registered "Lynx" and "Cougar" as trademarks.[18]

Apple faced a lawsuit from a computer retailer named Tiger Direct regarding its use of the name "Tiger". However, on May 16, 2005 the Florida Federal Court ruled that Apple's use of the name "Tiger" does not infringe upon Tiger Direct's trademark.[19]

Timeline of Mac operating systems
ARM architecture familyx86PowerPC68kMacBook Air (Apple silicon)iMac ProRetina MacBook ProMacBook AirApple–Intel architecturePower Mac G5Power Mac G4iMac G3Power MacintoshMacintosh QuadraMacintosh PortableMacintosh SE/30Macintosh IIMacintosh PlusMacintosh 128KmacOS SequoiamacOS SonomamacOS VenturamacOS MontereymacOS Big SurmacOS CatalinamacOS MojavemacOS High SierramacOS SierraOS X El CapitanOS X YosemiteOS X MavericksOS X Mountain LionMac OS X LionMac OS X Snow LeopardMac OS X LeopardMac OS X TigerMac OS X PantherMac OS X 10.2Mac OS X 10.1Mac OS X 10.0Mac OS X Server 1.0Mac OS X Public BetaA/UXA/UXA/UXMacWorks XLMacWorks XLSun RemarketingMacWorks XLMac OS 9Mac OS 9Mac OS 9Mac OS 8Mac OS 8Mac OS 8Mac OS 8System 7System 7System 7System 7System 6Classic Mac OSClassic Mac OSClassic Mac OSClassic Mac OSSystem 1Finder (software)Finder (software)Finder (software)Finder (software)Finder (software)Finder (software)Finder (software)

Mac OS X 10.0 (Cheetah)

Main article: Mac OS X v10.0
File:All boxes of apple os x releases.jpg
Box artwork for Mac OS X versions Cheetah/Puma, Jaguar, Panther, and Tiger.

On March 24 2001, Apple released Mac OS X v10.0 (internally codenamed Cheetah).[20] The initial version was slow, not feature complete, and had very few applications available at the time of its launch, mostly from independent developers. Many critics suggested that while the OS was not ready for mainstream adoption, they recognized the importance of its initial launch as a base on which to improve. Simply releasing Mac OS X was received by the Macintosh community as a great accomplishment, for attempts to completely overhaul the Mac OS had been underway since 1996, and delayed by countless setbacks. Following a few minor bug fixes, kernel panics became much less frequent, and Mac OS X began garnering praise for its stability at an early point in its development.

Mac OS X 10.1 (Puma)

Main article: Mac OS X v10.1

Later that year on September 25 2001, Mac OS X v10.1 (internally codenamed Puma) was released.[21] The upgrade increased the performance of the system and provided missing features, such as DVD playback. Apple released 10.1 as a free upgrade CD for 10.0 users, in addition to the US$129 boxed version for people running only Mac OS 9. It was discovered that the upgrade CDs were actually full install CDs that could be used with Mac OS 9 systems by removing a specific file; Apple subsequently re-released the CDs in an actual stripped-down format that didn't facilitate installation on such systems.

On January 7 2002, Apple announced that Mac OS X was to be the default operating system for all Macintosh products by the end of that month.[22]

Mac OS X 10.2 (Jaguar)

Main article: Mac OS X v10.2

On August 24 2002, Apple followed up with Mac OS X v10.2 "Jaguar" (the first release to use its code name as part of the branding[23]) which brought profound performance enhancements, a newer, sleeker look, and many powerful enhancements (over 150, according to Apple), including Quartz Extreme for compositing graphics directly on the AGP-based video card, a system-wide repository for contact information in the new Address Book, and its own instant messenging client, named iChat.[24]

Some consider version 10.2, or Jaguar, the "first good release" of Mac OS X.[25] Due to significant API changes between 10.1 and 10.2, most third party developers currently support 10.2 as a minimum requirement.

The Happy Mac which had appeared during the Mac OS startup sequence for almost 18 years was replaced with a large grey Apple logo with the introduction of Mac OS X 10.2.

Mac OS X 10.3 (Panther)

Main article: Mac OS X v10.3

Mac OS X v10.3 "Panther" was released on October 24 2003. In addition to providing much improved performance, it also incorporated the most extensive update yet to the user interface. The update included as many or more new features as Jaguar had the year before. On the other hand, support for some early G3 computers such as "beige" Power Macs and "WallStreet" PowerBooks was discontinued. New features of "Panther" include an updated Finder, incorporating a brushed-metal interface, Exposé, Fast User Switching, FileVault, Safari (web browser), iChat AV which added video-conferencing features to iChat, improved PDF rendering and much greater Microsoft Windows interoperability.[26]

Mac OS X 10.4 (Tiger)

Main article: Mac OS X v10.4

Mac OS X v10.4 "Tiger" was released on April 29 2005. Apple stated that Tiger contains more than 200 new features.[27] As with the release of Panther certain older machines have been dropped from the list of supported hardware; Tiger requires a Mac with a built-in FireWire port.[28] Among the new features, the release of Tiger introduced Spotlight, Dashboard, Smart Folders, updated Mail program with Smart Mailboxes, QuickTime 7, Safari 2, Automator, VoiceOver, Core Image and Core Video.

The retail package of Mac OS X Tiger was updated one year later around the end of April, 2006 to be sold in a smaller-size package. This installer, which replaced the first release in the retail market supply chain, was Mac OS X 10.4.3. [29]

On January 10th, 2006, Apple released the first Intel Macintoshes along with the 10.4.4 update to Tiger. This operating system functioned identically on the PowerPC-based Macintoshes and the new Intel-based machines.[30] Because the implementation of the operating system is built separately for the two processors, in implementation the PowerPC version and Intel versions are two separate installers (one cannot use the PowerPC installer to install the OS onto an Intel-based Mac). This remains true for the subsequent updates to the operating system, 10.4.5, 10.4.6, 10.4.7, and 10.4.8. As of yet, no retail package for an Intel-based Tiger Installer exists or has been released (customers who own an Intel-based Mac received Tiger along with their computer).

Mac OS X 10.5 (Leopard)

Main article: Mac OS X v10.5

Template:Future software Mac OS X v10.5 "Leopard" was announced at the Worldwide Developers Conference on June 6 2005, and was shown to developers for the first time at the 2006 Worldwide Developers Conference on August 7 2006. Steve Jobs stated that OS X Leopard will be available in the second quarter of 2007. Apple has said it will support both PowerPC- and Intel x86-based Macintosh computers. Though Apple maintains that "All features referenced in the Mac OS X Leopard Sneak Peek are subject to change,"[31] some officially previewed features include Time Machine, Spaces, Boot Camp pre-installed[32], full support for 64-bit applications, including graphical applications, new features in Mail and iChat and resolution independence.[33]

OS X on iPhone

Template:Future software The iPhone operating system is called OS X.[34] Apple's vice president of worldwide iPod marketing Greg Joswiak indicates that it's an optimized version of the operating system that runs on a Mac.[35] CEO Steve Jobs also announced that the phone does run OS X. According to information presented on the 2007 Macworld Conference & Expo, it will include several features present in Darwin and Mac OS X. Highlighted inherited features include syncing, networking, multi-tasking, power management, security, video playback, Cocoa, Core Animation, audio and graphics, as well as applications like Widgets, Mail, Calendar, and the Safari web browser.[36] It has also been suggested that the iPhone has features of OS X "Leopard".[37]

Criticisms

File:Dock labels not displayed.png
A Dock filled with some different documents, but from the same application.

Mac OS X has been criticized for some of its components:

  • Bruce Tognazzini, a usability consultant who worked for Apple in the 1980s and 1990s, has been critical of the Dock, noting his concerns that it takes too much space and is too cumbersome for everyday use.[38] Moreover, unlike its Microsoft Windows counterpart, it only displays labels if the mouse is over the item, so it makes it impossible to distinguish between different documents of an application without moving the mouse pointer. Closed documents appear in Dock exactly the same making it hard to distinguish one from another. However, unlike the Windows task bar, the Dock can be set to magnify its icons on the fly as the user hovers the mouse pointer over them. Tognazzini also criticized the Dock's drag and drop actions, noting the confusion that results when an icon vanishes in a small cloud animation and needs to be re-added from Finder to get it back. He described this "object annihilation" model as bad-behavior-inducing.[38]
  • Ars Technica columnist John Siracusa, who is known in the Apple community for his in-depth reviews of OS X, has been a vocal critic of the Finder. One of his strongest complaints is that some of the options and default behaviors of the OS X Finder violate the concept of "spatial interface" that existed in previous Finder versions. [39] John Gruber, author of Daring Fireball, has voiced similar criticisms of the Finder, saying in a 2005 interview that he felt the Finder had become worse since Mac OS X v10.0, stating that "the fundamental problem with the OS X Finder is that it’s trying to support two opposing paradigms at once – the browser metaphor ... and the spatial metaphor from the original Mac Finder ... and it ends up doing neither one very well."[40] However various reviewers note that, starting with OS 10.3, the Finder can be switched by user preference into a completely spatial mode.[41] [42] The Finder is also criticised for, by default, leaving files named .DS_Store on network shares which contain Mac OS X-specific information about folders.[43].

See also

References

  1. ^ Clover, Juli (October 23, 2024). "Apple Releases First Betas of iOS 18.2 and More With Genmoji, Image Playground and ChatGPT Integration". MacRumors. Retrieved October 28, 2024.
  2. ^ Singh, Amit. "Architecture of Mac OS X". What is Mac OS X?. Retrieved 2006-04-07.
  3. ^ Markoff, John (23 December 1996). "Why Apple Sees Next as a Match Made in Heaven". The New York Times. p. D1. {{cite news}}: Check date values in: |date= (help)
  4. ^ Anguish, Scott (1998-07-09). "Apple Renames Rhapsody, now Mac OS X Server". Retrieved 2006-12-20.
  5. ^ Raymond, Eric Steven. "The Elements of Operating-System Style".
  6. ^ Nick dePlume (18 January 2000). "Aqua: A Collection of Reader Feedback". Think Secret. Retrieved 2006-04-08. {{cite news}}: Check date values in: |date= (help)
  7. ^ "Think Secret - January 2000". Think Secret. January 18 2000. Retrieved 2006-12-20. {{cite web}}: Check date values in: |year= (help)CS1 maint: year (link)
  8. ^ "Apple lowers boom on Aqua 'skins'". ZDNet (mirrored from web.archive.org). February 2 2001. Retrieved 2006-05-22. {{cite web}}: Check date values in: |date= (help)
  9. ^ Apple Computer. "Introduction to Cocoa-Java Integration Guide". ADC Reference Library. Apple Developer Connection. Retrieved 2006-04-08.
  10. ^ "X11 for Mac OS X 1.0". 2003-10-28. Retrieved 2006-12-20.
  11. ^ "Mac OS X: System Requirements". 2005-04-28. Retrieved 2006-12-20.
  12. ^ Matthew Rothenberg and Nick dePlume (August 30 2002). "Apple Keeps x86 Torch Lit with 'Marklar'". eWeek.com. Retrieved 2005-10-03. {{cite web}}: Check date values in: |date= (help)
  13. ^ Don Clark and Nick Wingfield (May 23 2005). "Apple Explores Use Of Chips From Intel For Macintosh Line". Wall Street Journal. {{cite web}}: Check date values in: |date= (help)
  14. ^ Michael Kanellos (May 23 2005). "Apple to Intel: Some advantage, lots of risk". CNet. Retrieved 2006-04-28. {{cite web}}: Check date values in: |date= (help)
  15. ^ Apple Computer (6 June 2005). "Apple to Use Intel Microprocessors Beginning in 2006". Retrieved 2006-04-08. {{cite news}}: Check date values in: |date= (help)
  16. ^ "Adopting Universal Binaries". 2006-01-31. Retrieved 2006-12-20.
  17. ^ "What is an operating system (OS)?". 2004-07-15. Retrieved 2006-12-20.
  18. ^ Trademark #78257226 for Panther, #78269988 for Tiger, #78270003 for Leopard, #78271630 for Cougar and #78271639 for Lynx, all registered in 2004 by Apple Computer, Inc. "United States Patent and Trademark Office". Retrieved 2006-12-20.
  19. ^ Jade, Kasper. "Court sides with Apple over "Tiger" trademark dispute". AppleInsider. Retrieved 2006-04-25.
  20. ^ Although the version is now called Cheetah by users, rare evidences can be found to prove that it was called that way internally. For instance, a Q&A was created in 2005 which mentions it "Technical Q&A". 2005-10-04. Retrieved 2006-12-20.
  21. ^ The name Puma can be found here "Cross-Development". 2006-11-07. Retrieved 2006-12-20.
  22. ^ "Apple Makes Mac OS X the Default Operating System on All Macs". Apple Website. Apple Computer. 2002. Retrieved 2006-12-03.
  23. ^ The headline of the press release mention "Jaguar", while the codename was not mentioned for earlier versions. See Jaguar press release, compared to Mac OS X v10.0 press release and Mac OS X v10.1 press release
  24. ^ "Apple Previews "Jaguar," the Next Major Release of Mac OS X". 2002-05-06. Retrieved 2006-12-20.
  25. ^ Siracusa, John. "Mac OS X 10.2 Jaguar". Retrieved 2006-12-20.
  26. ^ "Apple Announces Mac OS X "Panther"". 2003-10-24. Retrieved 2007-01-11.
  27. ^ "Apple Unleashes "Tiger" Friday at 6:00 p.m." 2005-04-28. Retrieved 2007-01-11.
  28. ^ "Mac OS X: System Requirements". 2005-04-28. Retrieved 2007-01-11.
  29. ^ "Apple to update Mac OS X Tiger retail offerings". 2006-04-26. Retrieved 2007-02-13.
  30. ^ http://www.appleinsider.com/article.php?id=1453
  31. ^ See "Leopard Sneak Peak". Apple Computer. Retrieved 2006-12-20.
  32. ^ "Apple - BootCamp". Apple Website. Apple Computer. 2006. Retrieved 2006-06-05.
  33. ^ "Apple - Mac OS X - Leopard Sneak Peak". Retrieved 2007-01-11.
  34. ^ "Apple - iPhone - High Technology - OS X". Retrieved 2007-01-13.
  35. ^ "Macworld Expo: Optimised OS X sits on 'versatile' flash". Retrieved 2007-01-13.
  36. ^ Jobs, Steve (2007-01-09). "MacWorld San Francisco 2007". iPhone Presentation. San Francisco. Retrieved 2007-01-11. {{cite conference}}: Unknown parameter |booktitle= ignored (|book-title= suggested) (help)
  37. ^ Ihnatko, Andy (January 18, 2007). "You could call iPhone perfect". Chicago Sun-Times. Retrieved 2007-02-12.
  38. ^ a b Tognazzini, Bruce (2004-01-01). "Top Nine Reasons the Apple Dock Still Sucks". Retrieved 2006-12-20.
  39. ^ Siracusa, John (2003-04-02). "About the Finder..." Retrieved 2006-12-20.
  40. ^ Marcin Wichary (September 2005). "Interview with John Gruber". GUIdebook. Retrieved 2007-01-13.
  41. ^ Jones, Jasyn (2003-10-26). "Missing the Boat on Panther". Mac Write. Retrieved 2007-02-05.
  42. ^ Moore, Charles (2006-08-03). "Finder Finesse - Hands-On Mac". Applelinks. Retrieved 2007-02-05.
  43. ^ Apple Computer (May 24, 2005). "Mac OS X 10.4: How to prevent .DS_Store file creation over network connections". www.apple.com/support/. Retrieved 2007-01-13.{{cite web}}: CS1 maint: year (link)
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