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So, you’ve decided to download an older version of Mac OS X. There are many reasons that could point you to this radical decision. To begin with, some of your apps may not be working properly (or simply crash) on newer operating systems. Also, you may have noticed your Mac’s performance went down right after the last update. Finally, if you want to run a parallel copy of Mac OS X on a virtual machine, you too will need a working installation file of an older Mac OS X. Further down we’ll explain where to get one and what problems you may face down the road.

Page 17 Logging In to Mac OS X Mac OS X is set up to log in automatically using the user account that you Make sure you are typing the user account name and password with created when you set up Mac OS X. If automatic login is turned off, you the same capitalization and punctuation that you used originally.

1. Mac OS X Mountain Lion 10.8.5 Free Download. Overview and Screenshots. Mac OS X Mountain Lion 10.8.5 is an updated version of Apple's Mac OS X, which brings some innovation and, as usual, improves the overall experience for users of Apple products. Mac OS X Mountain Lion 10.8.5 interface and icons.
2. Dec 15, 2015  Unleash the power of OS X Mountain Lion! Maximize the amazing features packed into the latest release of Apple’s cutting-edge desktop operating system. With coverage of the iMac, MacBook, MacBook Air, and Mac mini, How to Do Everything: Mac OS X Mountain Lion shows you how to set up and customize your machine for peak performance.
3. Lion On Demand, Mac OS X Lion: Visual Quickstart Guide, and Mac OS X Lion: Peachpit Learning Series. The aforementioned books are guides/tutorials, whereas the Missing Manual is a more comprehensive and technical reference. A comparable book to the Missing Manual would be Mac OS X Lion Bible, which is of similar size and coverage.

A list of all Mac OS X versions

We’ll be repeatedly referring to these Apple OS versions below, so it’s good to know the basic macOS timeline.

STEP 1. Prepare your Mac for installation

Given your Mac isn’t new and is filled with data, you will probably need enough free space on your Mac. This includes not just space for the OS itself but also space for other applications and your user data. One more argument is that the free space on your disk translates into virtual memory so your apps have “fuel” to operate on. The chart below tells you how much free space is needed.

Note, that it is recommended that you install OS on a clean drive. Next, you will need enough disk space available, for example, to create Recovery Partition. Here are some ideas to free up space on your drive:

• Uninstall large unused apps
• Empty Trash Bin and Downloads
• Locate the biggest files on your computer:

Go to Finder > All My Files > Arrange by size
Then you can move your space hoggers onto an external drive or a cloud storage.
If you aren’t comfortable with cleaning the Mac manually, there are some nice automatic “room cleaners”. Our favorite is CleanMyMac as it’s most simple to use of all. It deletes system junk, old broken apps, and the rest of hidden junk on your drive.

Download CleanMyMac for OS 10.4 - 10.8 (free version)

Download CleanMyMac for OS 10.9 (free version)

Download CleanMyMac for OS 10.10 - 10.14 (free version)

STEP 2. Get a copy of Mac OS X download

Normally, it is assumed that updating OS is a one-way road. That’s why going back to a past Apple OS version is problematic. The main challenge is to download the OS installation file itself, because your Mac may already be running a newer version. If you succeed in downloading the OS installation, your next step is to create a bootable USB or DVD and then reinstall the OS on your computer.

How to download older Mac OS X versions via the App Store

If you once had purchased an old version of Mac OS X from the App Store, open it and go to the Purchased tab. There you’ll find all the installers you can download. However, it doesn’t always work that way. The purchased section lists only those operating systems that you had downloaded in the past. But here is the path to check it:

1. Click the App Store icon.
2. Click Purchases in the top menu.
3. Scroll down to find the preferred OS X version.
4. Click Download.

This method allows you to download Mavericks and Yosemite by logging with your Apple ID — only if you previously downloaded them from the Mac App Store.

Without App Store: Download Mac OS version as Apple Developer

If you are signed with an Apple Developer account, you can get access to products that are no longer listed on the App Store. If you desperately need a lower OS X version build, consider creating a new Developer account among other options. The membership cost is $99/year and provides a bunch of perks unavailable to ordinary users.

Nevertheless, keep in mind that if you visit developer.apple.com/downloads, you can only find 10.3-10.6 OS X operating systems there. Newer versions are not available because starting Mac OS X Snow Leopard 10.7, the App Store has become the only source of updating Apple OS versions.

Purchase an older version of Mac operating system

You can purchase a boxed or email version of past Mac OS X directly from Apple. Both will cost you around $20. For the reason of being rather antiquated, Snow Leopard and earlier Apple versions can only be installed from DVD.

Buy a boxed edition of Snow Leopard 10.6
Get an email copy of Lion 10.7
Get an email copy of Mountain Lion 10.8

The email edition comes with a special download code you can use for the Mac App Store. Note, that to install the Lion or Mountain Lion, your Mac needs to be running Snow Leopard so you can install the newer OS on top of it.

How to get macOS El Capitan download

If you are wondering if you can run El Capitan on an older Mac, rejoice as it’s possible too. But before your Mac can run El Capitan it has to be updated to OS X 10.6.8. So, here are main steps you should take:

1. Install Snow Leopard from install DVD.
2. Update to 10.6.8 using Software Update.
3. Download El Capitan here.

“I can’t download an old version of Mac OS X”

If you have a newer Mac, there is no physical option to install Mac OS versions older than your current Mac model. For instance, if your MacBook was released in 2014, don’t expect it to run any OS released prior of that time, because older Apple OS versions simply do not include hardware drivers for your Mac.

But as it often happens, workarounds are possible. There is still a chance to download the installation file if you have an access to a Mac (or virtual machine) running that operating system. For example, to get an installer for Lion, you may ask a friend who has Lion-operated Mac or, once again, set up a virtual machine running Lion. Then you will need to prepare an external drive to download the installation file using OS X Utilities.

After you’ve completed the download, the installer should launch automatically, but you can click Cancel and copy the file you need. Below is the detailed instruction how to do it.

STEP 3. Install older OS X onto an external drive

The following method allows you to download Mac OS X Lion, Mountain Lion, and Mavericks.

1. Start your Mac holding down Command + R.
2. Prepare a clean external drive (at least 10 GB of storage).
3. Within OS X Utilities, choose Reinstall OS X.
4. Select external drive as a source.
5. Enter your Apple ID.

Now the OS should start downloading automatically onto the external drive. After the download is complete, your Mac will prompt you to do a restart, but at this point, you should completely shut it down. Now that the installation file is “captured” onto your external drive, you can reinstall the OS, this time running the file on your Mac.

1. Boot your Mac from your standard drive.
2. Connect the external drive.
3. Go to external drive > OS X Install Data.

Locate InstallESD.dmg disk image file — this is the file you need to reinstall Lion OS X. The same steps are valid for Mountain Lion and Mavericks.

How to downgrade a Mac running later macOS versions

If your Mac runs macOS Sierra 10.12 or macOS High Sierra 10.13, it is possible to revert it to the previous system if you are not satisfied with the experience. You can do it either with Time Machine or by creating a bootable USB or external drive.
Instruction to downgrade from macOS Sierra

Instruction to downgrade from macOS High Sierra

Instruction to downgrade from macOS Mojave

Before you do it, the best advice is to back your Mac up so your most important files stay intact. In addition to that, it makes sense to clean up your Mac from old system junk files and application leftovers. The easiest way to do it is to run CleanMyMac X on your machine (download it for free here).

Visit your local Apple Store to download older OS X version

If none of the options to get older OS X worked, pay a visit to nearest local Apple Store. They should have image installations going back to OS Leopard and earlier. You can also ask their assistance to create a bootable USB drive with the installation file. So here you are. We hope this article has helped you to download an old version of Mac OS X. Below are a few more links you may find interesting.

These might also interest you:

The history of macOS, Apple's current Macoperating system originally named Mac OS X until 2012 and then OS X until 2016, began with the company's project to replace its 'classic' Mac OS. That system, up to and including its final release Mac OS 9, was a direct descendant of the operating system Apple had used in its Macintosh computers since their introduction in 1984. However, the current macOS is a Unix operating system built on technology that had been developed at NeXT from the 1980s until Apple purchased the company in early 1997.

Although it was originally marketed as simply 'version 10' of the Mac OS (indicated by the Roman numeral 'X'), it has a completely different codebase from Mac OS 9, as well as substantial changes to its user interface. The transition was a technologically and strategically significant one. To ease the transition, versions through 10.4 were able to run Mac OS 9 and its applications in a compatibility layer.

It was first released in 1999 as Mac OS X Server 1.0, with a widely released desktop version—Mac OS X 10.0—following in March 2001. Since then, several more distinct desktop and server editions of macOS have been released. Starting with Mac OS X 10.7 Lion, macOS Server is no longer offered as a separate operating system; instead, server management tools are available for purchase as an add-on. Starting with the Intel build of Mac OS X 10.5 Leopard, most releases have been certified as Unix systems conforming to the Single Unix Specification.^{[1][2][3][4][5]}

macOS has retained the major version number 10 throughout its development history to date; releases of macOS have also been named after big cats (versions 10.0–10.8) or locations in California (10.9–present).

• 1Development
• 2Releases

Development[edit]

Development outside Apple[edit]

After Apple removed Steve Jobs from management in 1985, he left the company and attempted to create the 'next big thing', with funding from Ross Perot^[6] and himself. The result was the NeXT Computer. As the first workstation to include a digital signal processor (DSP) and a high-capacity optical disc drive, NeXT hardware was advanced for its time, but was expensive relative to the rapidly commoditizing workstation market and marred by design problems. The hardware was phased out in 1993; however, the company's object-oriented operating systemNeXTSTEP had a more lasting legacy.

NeXTSTEP was based on the Mach kernel developed at CMU (Carnegie Mellon University)^[7] and BSD, an implementation of Unix dating back to the 1970s. It featured an object-oriented programming framework based on the Objective-C language. This environment is known today in the Mac world as Cocoa. It also supported the innovative Enterprise Objects Framework database access layer and WebObjects application server development environment, among other notable features.

All but abandoning the idea of an operating system, NeXT managed to maintain a business selling WebObjects and consulting services, but was never a commercial success. NeXTSTEP underwent an evolution into OPENSTEP which separated the object layers from the operating system below, allowing it to run with less modification on other platforms. OPENSTEP was, for a short time, adopted by Sun Microsystems. However, by this point, a number of other companies — notably Apple, IBM, Microsoft, and even Sun itself — were claiming they would soon be releasing similar object-oriented operating systems and development tools of their own. (Some of these efforts, such as Taligent, did not fully come to fruition; others, like Java, gained widespread adoption.)

On February 4, 1997, Apple Computer acquired NeXT for $427 million, and used OPENSTEP as the basis for Mac OS X, as it was called at the time.^[8] Traces of the NeXT software heritage can still be seen in macOS. For example, in the Cocoa development environment, the Objective-C library classes have 'NS' prefixes, and the HISTORY section of the manual page for the defaults command in macOS straightforwardly states that the command 'First appeared in NeXTStep.'

Internal development[edit]

Meanwhile, Apple was facing commercial difficulties of its own. The decade-old Macintosh System Software had reached the limits of its single-user, co-operative multitasking architecture, and its once-innovative user interface was looking increasingly outdated. A massive development effort to replace it, known as Copland, was started in 1994, but was generally perceived outside Apple to be a hopeless case due to political infighting and conflicting goals. By 1996, Copland was nowhere near ready for release, and the project was eventually cancelled. Some elements of Copland were incorporated into Mac OS 8, released on July 26, 1997.

After considering the purchase of BeOS — a multimedia-enabled, multi-tasking OS designed for hardware similar to Apple's, the company decided instead to acquire NeXT and use OPENSTEP as the basis for their new OS. Avie Tevanian took over OS development, and Steve Jobs was brought on as a consultant. At first, the plan was to develop a new operating system based almost entirely on an updated version of OPENSTEP, with the addition of a virtual machine subsystem — known as the Blue Box — for running 'classic' Macintosh applications. The result was known by the code name Rhapsody, slated for release in late 1998.

Apple expected that developers would port their software to the considerably more powerful OPENSTEP libraries once they learned of its power and flexibility. Instead, several major developers such as Adobe told Apple that this would never occur, and that they would rather leave the platform entirely. This 'rejection' of Apple's plan was largely the result of a string of previous broken promises from Apple; after watching one 'next OS' after another disappear and Apple's market share dwindle, developers were not interested in doing much work on the platform at all, let alone a re-write.

Changed direction under Jobs[edit]

Apple's financial losses continued and the board of directors lost confidence in CEO Gil Amelio, asking him to resign. The board asked Steve Jobs to lead the company on an interim basis, essentially giving him carte blanche to make changes to return the company to profitability. When Jobs announced at the World Wide Developer's Conference that what developers really wanted was a modern version of the Mac OS, and Apple was going to deliver it^{[citation needed]}, he was met with thunderous applause. Over the next two years, major effort was applied to porting the original Macintosh APIs to Unix libraries known as Carbon. Mac OS applications could be ported to Carbon without the need for a complete re-write, making them operate as native applications on the new operating system. Meanwhile, applications written using the older toolkits would be supported using the 'Classic' Mac OS 9 environment. Support for C, C++, Objective-C, Java, and Python were added, furthering developer comfort with the new platform.

During this time, the lower layers of the operating system (the Mach kernel and the BSD layers on top of it^[9]) were re-packaged and released under the Apple Public Source License. They became known as Darwin. The Darwin kernel provides a stable and flexible operating system, which takes advantage of the contributions of programmers and independent open-source projects outside Apple; however, it sees little use outside the Macintosh community^{[citation needed]}. During this period, the Java programming language had increased in popularity, and an effort was started to improve Mac Java support. This consisted of porting a high-speed Java virtual machine to the platform, and exposing macOS-specific 'Cocoa' APIs to the Java language.

The first release of the new OS — Mac OS X Server 1.0 — used a modified version of the Mac OS GUI, but all client versions starting with Mac OS X Developer Preview 3 used a new theme known as Aqua. Aqua was a substantial departure from the Mac OS 9 interface, which had evolved with little change from that of the original Macintosh operating system: it incorporated full color scalable graphics, anti-aliasing of text and graphics, simulated shading and highlights, transparency and shadows, and animation. A key new feature was the Dock, an application launcher which took advantage of these capabilities. Despite this, OS X maintained a substantial degree of consistency with the traditional Mac OS interface and Apple's own Apple Human Interface Guidelines, with its pull-down menu at the top of the screen, familiar keyboard shortcuts, and support for a single-button mouse. The development of Aqua was delayed somewhat by the switch from OpenStep's Display PostScript engine to one developed in-house that was free of any license restrictions, known as Quartz.

Releases[edit]

With the exception of Mac OS X Server 1.0 and the original public beta, the first several macOS versions were 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 code name 'Jaguar' for version 10.2 received publicity in the media, Apple began openly using the names to promote the operating system: 10.3 was marketed as 'Panther', 10.4 as 'Tiger', 10.5 as 'Leopard', 10.6 as 'Snow Leopard', 10.7 as 'Lion', and 10.8 as 'Mountain Lion'. 'Panther', 'Tiger', and 'Leopard' were registered as trademarks, and Apple registered 'Lynx' and 'Cougar', but these were allowed to lapse,^[10] with Apple instead using the name of iconic locations in California for subsequent releases: 10.9 Mavericks is named after Mavericks, a popular surfing destination; 10.10 Yosemite is named after Yosemite National Park; 10.11 El Capitan is named for El Capitan; 10.12 Sierra is named for the Sierra Nevada mountain range; and 10.13 High Sierra is named for the area around the High Sierra Camps.

Public Beta: 'Kodiak'[edit]

On September 13, 2000 Apple released a $29.95^[11] 'preview' version of Mac OS X (internally codenamed Kodiak) in order to gain feedback from users.^[12] It marked the first public availability of the Aqua interface, and Apple made many changes to the UI based on customer feedback. Mac OS X Public Beta expired and ceased to function in spring 2001.^[13]

Version 10.0: 'Cheetah'[edit]

On March 24, 2001, Apple released Mac OS X 10.0 (internally codenamed Cheetah).^[14]The initial version was slow, incomplete, and had very few applications available at the time of its launch, mostly from independent developers. While many critics suggested that the operating system 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 some bug fixes, kernel panics became much less frequent.

Version 10.1: 'Puma'[edit]

Mac OS X 10.1 (internally codenamed Puma) was released on September 25, 2001.^[15]It has better performance and provided missing features, such as DVD playback. Apple released 10.1 as a free upgrade CD for 10.0 users. Apple released a US$129 upgrade CD for Mac OS 9.

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.^[16]

Version 10.2: 'Jaguar'[edit]

On August 23, 2002,^[17]Apple followed up with Mac OS X 10.2Jaguar, the first release to use its code name as part of the branding.^[18]It brought great raw performance improvements, a sleeker look, and many powerful user-interface enhancements (over 150, according to Apple^[19]), including Quartz Extreme for compositing graphics directly on an ATIRadeon or NvidiaGeForce2 MX AGP-based video card with at least 16 MB of VRAM, a system-wide repository for contact information in the new Address Book, and an instant messaging client named iChat.^[20]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.

Version 10.3: 'Panther'[edit]

Mac OS X 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. Panther included as many or more new features as Jaguar had the year before, including an updated Finder, incorporating a brushed-metal interface, Fast user switching, Exposé (Window manager), FileVault, Safari, iChat AV (which added videoconferencing features to iChat), improved Portable Document Format (PDF) rendering and much greater Microsoft Windows interoperability.^[21]Support for some early G3 computers such as the Power Macintosh and PowerBook was discontinued.

Version 10.4: 'Tiger'[edit]

Mac OS X Tiger was released on April 29, 2005. Apple stated that Tiger contained more than 200 new features.^[22]As with Panther, certain older machines were no longer supported; Tiger requires a Mac with a built-in FireWire port.Among the new features, Tiger introduced Spotlight, Dashboard, Smart Folders, updated Mail program with Smart Mailboxes, QuickTime 7, Safari 2, Automator, VoiceOver, Core Image and Core Video. The initial release of the Apple TV used a modified version of Tiger with a different graphical interface and fewer applications and services. On January 10, 2006, Apple released the first Intel-based Macs along with the 10.4.4 update to Tiger. This operating system functioned identically on the PowerPC-based Macs and the new Intel-based machines, with the exception of the Intel release dropping support for the Classic environment.^[23]Only PowerPC Macs can be booted from retail copies of the Tiger client DVD, but there is a Universal DVD of Tiger Server 10.4.7 (8K1079) that can boot both PowerPC and Intel Macs.

Version 10.5: 'Leopard'[edit]

Mac OS X Leopard was released on October 26, 2007. It was called by Apple 'the largest update of Mac OS X'. Leopard supports both PowerPC- and Intel x86-based Macintosh computers; support for the G3 processor was dropped and the G4 processor required a minimum clock rate of 867 MHz, and at least 512 MB of RAM to be installed. The single DVD works for all supported Macs (including 64-bit machines). New features include a new look, an updated Finder, Time Machine, Spaces, Boot Camp pre-installed,^[24] full support for 64-bit applications (including graphical applications), new features in Mail and iChat, and a number of new security features. Leopard is an Open Brand UNIX 03 registered product on the Intel platform. It was also the first BSD-based OS to receive UNIX 03 certification.^[1][25] Leopard dropped support for the Classic Environment and all Classic applications,^[26] and was the final version of Mac OS X to support the PowerPC architecture.

Version 10.6: 'Snow Leopard'[edit]

Mac OS X Snow Leopard was released on August 28, 2009, the last version to be available on disc. Rather than delivering big changes to the appearance and end user functionality like the previous releases of Mac OS X, the development of Snow Leopard was deliberately focused on 'under the hood' changes, increasing the performance, efficiency, and stability of the operating system. For most users, the most noticeable changes are these: the disk space that the operating system frees up after a clean installation compared to Mac OS X 10.5 Leopard, a more responsive Finder rewritten in Cocoa, faster Time Machine backups, more reliable and user friendly disk ejects, a more powerful version of the Preview application, as well as a faster Safari web browser. An update introduced support for the Mac App Store, Apple's digital distribution platform for macOS applications and subsequent macOS upgrades.^[27] Snow Leopard only supports machines with Intel CPUs, requires at least 1 GB of RAM, and drops default support for applications built for the PowerPC architecture (Rosetta can be installed as an additional component to retain support for PowerPC-only applications).^[28]

Mac Os X Mountain Lion Manual Pdf Free

Version 10.7: 'Lion'[edit]

Mac OS X Lion was released on July 20, 2011. It brought developments made in Apple's iOS, such as an easily navigable display of installed applications (Launchpad) and (a greater use of) multi-touch gestures, to the Mac. This release removed Rosetta, making it incapable of running PowerPC applications. It dropped support for 32-bit Intel processors and requires 2GB of memory. Changes made to the GUI (Graphical User Interface) include the Launchpad (similar to the home screen of iOS devices), auto-hiding scrollbars that only appear when they are being used, and Mission Control, which unifies Exposé, Spaces, Dashboard, and full-screen applications within a single interface.^[29]Apple also made changes to applications: they resume in the same state as they were before they were closed (similar to iOS). Documents auto-save by default.

Version 10.8: 'Mountain Lion'[edit]

OS X Mountain Lion was released on July 25, 2012. It incorporates some features seen in iOS 5, which include Game Center, support for iMessage in the new Messages messaging application, and Reminders as a to-do list app separate from iCal (which is renamed as Calendar, like the iOS app). It also includes support for storing iWork documents in iCloud. 2GB of memory is required.^[30] Notification Center, which makes its debut in Mountain Lion, is a desktop version similar to the one in iOS 5.0 and higher. Application pop-ups are now concentrated on the corner of the screen, and the Center itself is pulled from the right side of the screen. Mountain Lion also includes more Chinese features, including support for Baidu as an option for Safari search engine.^[31]Notification Center is added, providing an overview of alerts from applications. Notes is added, as an application separate from Mail, synching with its iOS counterpart^[32][33] through the iCloud service. Messages, an instant messagingsoftware application,^[34] replaces iChat.^[35]

Version 10.9: 'Mavericks'[edit]

OS X Mavericks was released on October 22, 2013, as a free update through the Mac App Store worldwide.^[36]It placed emphasis on battery life, Finder enhancements, other enhancements for power users, and continued iCloud integration, as well as bringing more of Apple's iOS apps to the OS X platform. iBooks and Apple Maps applications were added. Mavericks requires 2GB of memory to operate. It is the first version named under Apple's then-new theme of places in California, dubbed Mavericks after the surfing location.^[37][38] Unlike previous versions of OS X, which had progressively decreasing prices since 10.6, 10.9 was available at no charge to all users of compatible systems running Snow Leopard (10.6) or later,^[39] beginning Apple's policy of free upgrades for life on its operating system and business software.^[40]

Version 10.10: 'Yosemite'[edit]

OS X Yosemite was released to the general public on October 16, 2014, as a free update through the Mac App Store worldwide. It featured a major overhaul of user interface, replaced skeuomorphism with flat graphic design and blurred translucency effects, following the aesthetic introduced with iOS 7. It introduced features called Continuity and Handoff, which allow for tighter integration between paired OS X and iOS devices: the user can handle phone calls or text messages on either their Mac or their iPhone, and edit the same Pages document on either their Mac or their iPad. A later update of the OS included Photos as a replacement for iPhoto and Aperture.

Mac Os X Mountain Lion Manual Pdf Download

Version 10.11: 'El Capitan'[edit]

OS X El Capitan was revealed on June 8, 2015, during the WWDC keynote speech.^[41] It was made available as a public beta in July and was made available publicly on September 30, 2015. Apple described this release as containing 'Refinements to the Mac Experience' and 'Improvements to System Performance' rather than new features. Refinements include public transport built into the Maps application, GUI improvements to the Notes application, as well as adopting San Francisco as the system font. Metal API, an application enhancing software, had debuted in this operating system, being available to 'all Macs since 2012'.^[42]

Version 10.12: 'Sierra'[edit]

macOS Sierra was announced on June 13, 2016, during the WWDC keynote speech. The update brought Siri to macOS, featuring several Mac-specific features, like searching for files. It also allowed websites to support Apple Pay as a method of transferring payment, using either a nearby iOS device or Touch ID to authenticate. iCloud also received several improvements, such as the a ability to store a user’s Desktop and Documents folders on iCloud so they could be synced with other Macs on the same Apple ID. It was released publicly on September 20, 2016.^[43]

Version 10.13: 'High Sierra'[edit]

macOS High Sierra was announced on June 5, 2017, during the WWDC keynote speech. It was released on September 25, 2017. The release includes many under-the-hood improvements, including a switch to Apple File System (APFS), the introduction of Metal 2, support for HEVC video, and improvements to VR support. In addition, numerous changes were made to standard applications including Photos, Safari, Notes, and Spotlight.^[44]

Version 10.14: 'Mojave'[edit]

macOS Mojave was announced on June 4, 2018, during the WWDC keynote speech. It was released on September 24, 2018. Some of the key new features were the Dark mode, Desktop stacks and Dynamic Desktop, which changes the desktop background image to correspond to the user's current time of day.^[45]

Version 10.15: 'Catalina'[edit]

macOS Catalina was announced on June 3, 2019, during the WWDC keynote speech. It primarily focuses on updates to built-in apps, such as replacing iTunes with separate Music, Podcasts, and TV apps, redesigned Reminders and Books apps, and a new Find My app. It also features Sidecar, which allows the user to use an iPad as a second screen for their computer, or even simulate a graphics tablet with an Apple Pencil. It is the first version of macOS not to support 32-bit applications.^[46]

Timeline[edit]

Os X Mountain Lion 10.8 Download

See also[edit]

References[edit]

1. ^ ^abThe Open Group. 'Mac OS X version 10.5 Leopard on Intel-based Macintosh computers certification'. Archived from the original on 2008-05-11. Retrieved 2007-06-12.
2. ^The Open Group. 'Mac OS X version 10.6 Leopard on Intel-based Macintosh computers certification'. Archived from the original on 2014-11-16. Retrieved 2013-07-11.
3. ^The Open Group. 'Mac OS X version 10.8 Mountain Lion on Intel-based Macintosh computers certification'. Archived from the original on 2014-11-16. Retrieved 2013-07-11.
4. ^The Open Group. 'Mac OS X version 10.9 Mavericks on Intel-based Macintosh computers certification'. Archived from the original on 2013-11-04. Retrieved 2013-09-18.
5. ^The Open Group. 'OS X version 10.10 Yosemite on Intel-based Macintosh computers certification'. Archived from the original on 2014-11-10. Retrieved 2014-11-13.
6. ^Isaacson, Walter (2011). Steve Jobs. Simon & Schuster. p. 227. ISBN978-1-4087-0374-8.
7. ^A Practical Guide to Linux Commands, Editors, and Shell Programming, 3rd edition, by Mark G. Sobell, page 2
8. ^Linzmayer, Owen W. (1999). Apple Confidential: The Real Story of Apple Computer, Inc.
9. ^A Practical Guide to Llinux Commands, Editors, and Shell Programming, 3rd edition by Mark G. Sobell, page 2
10. ^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'. Archived from the original on December 20, 2006. Retrieved December 20, 2006.
11. ^John Siracusa. 'Mac OS X Beta – Page 1 – (10/2000)'. Ars Technica. Condé Nast Digital. Archived from the original on October 30, 2009. Retrieved March 11, 2010.
12. ^'Makefile'. Apple. June 2005. Archived from the original on 2009-01-14. Retrieved December 15, 2008. RC Release is Kodiak (Public Beta)
13. ^'Mac OS X Public Beta Expires Today | News'. The Mac Observer. Archived from the original on June 8, 2011. Retrieved March 11, 2010.
14. ^Although the version is now called Cheetah by users, rare evidences can be found to prove that it was called so internally. For instance, a Q&A was created in 2005 which mentions it'Technical Q&A'. Apple. October 4, 2005. Archived from the original on May 18, 2008. Retrieved December 20, 2006.
15. ^'Cross-Development'. Apple. November 11, 2006. Archived from the original on 2007-05-20. Retrieved December 20, 2006.
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Mac Os X Mountain Lion Manual Pdf 2017

External links[edit]

Mac Os X Mountain Lion Manual Pdf 2017