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Mac Os X 10.half dozen Snowfall Leopard

Mac Bone X 10.six Snow Leopard was billed every bit primarily under-the-hood changes to OS X 10.5 Leopard, but information technology was much more significant than that.

Snow Leopard was announced at the June 2008 Worldwide Developer Conference (WWDC) and released on August 28, 2009.

For the first fourth dimension since Mac OS 8.five had been released in October 1998, Apple left behind an entire processor architecure. Back and then, it left behind the Motorola 680x0 CPUs in favor of PowerPC (the get-go PPC Macs had been introduced in March 1994). With 10.half dozen, Apple left behind PowerPC CPUs in favor of Intel (the kickoff Intel Macs were introduced in January 2006).

Big Changes with 10.6

Snowfall Leopard is smaller than Leopard. By removing PowerPC and other unnecessary legacy code, Apple greatly reduced the drive space needed by the operating arrangement. It takes up about half as much space and thus will install almost twice as fast as Leopard. That said, it makes more demands of your hardware, and so a Mac that runs Leopard comfortably with one GB of memory may feel very sluggish with Snow Leopard once you have more than a couple apps running. We strongly recommend at least 2 GB of memory for x.6.
Chiliad Central Acceleration (GCD) means that the entire operating system is designed to take advantage of multiple cores, whether on ane fleck or more than one. Process threads, which were handled past apps in the past, are now handled by the Os with new programs designed to use GCD. GCD will assign only as many threads to an app as it currently needs, which makes for better employ of resources.
Full 64-bit back up means programs will no longer exist limited to four GB of RAM; the new maximum (xvi exabytes) is meaningless, as no computer in the forseeable future will exist able to hold billions of gigabytes of memory. Both the OS and about all "arrangement applications" (Finder, Safari, Postal service, iChat, iCal, etc.) are set up for 64-bit operation. And Snowfall Leopard is completely backwards-compatible with 32-scrap apps. First generation Intel Macs designed effectually Intel Core Solo and Core Duo chips practice not support 64-flake functioning; all Macs since and then do.
OpenCL takes advantage of powerful modern graphic processing units (GPUs, a.k.a. "video cards") for more than displaying video. All of that processing power will likewise be bachelor for general purpose calculating.
QuickTime X introduced a new QuickTime role player and volition take full reward of Core Audio, Cadre Video, and Core Blitheness. It tin record audio and video using your Mac's built-in microphone and webcam, and it can trim and consign for iPod, iPhone, Apple Television receiver, YouTube, and MobileMe so you don't demand to worry nigh which codec to use. QuickTime X supports HTTP alive streaming, which can suit quality on the wing based on bachelor network bandwidth. Of course information technology takes advantage of GCD and 64-bit performance.
Substitution Back up is built right into the OS. Mail, iCal, and Accost Book will work with Microsoft Commutation Server 2007. This may explicate why Microsoft finally brought Outlook to the Mac with Office 2010. Then long, Outlook.
The Finder has been completely rewritten to support 64-bit performance and take reward of Grand Central Acceleration. This makes the Finder much more responsive.
For the first fourth dimension, the Services menu is contextual: You will only run across the services available to the current app. (Until now, half or more of the Services might be grayed out because they don't piece of work with your current program.)
Exposé can work in the Dock - click and hold an awarding icon and it volition display that app's active documents in a grid. Apple claims this will brand information technology "even easier to find what you're looking for."
Time Machine backups are up to 50% faster, according to Apple tree. This will be especially helpful for that showtime, long, full backup.
Macs shut down and wake upwards more quickly, and joining a WiFi network is also faster. This makes for more energy efficient file sharing - your sleeping Mac uses less energy and wakes more speedily to serve up files.
If yous travel with you're Mac, you'll capeesh automatic fourth dimension zone settings.
The 'Wake on Demand' characteristic may keep your Mac from staying asleep. The fix is to reset the Free energy Saver settings to their defaults, so put in your ain settings.

Things Lost with 10.6

In that location is no back up for LocalTalk/AppleTalk in Snow Leopard. You'll need to notice another way to connect those quondam printers.
There is no longer any support for Palm Os devices in iSync. The Missing Sync (commercial software) does support Palm devices.
Snowfall Leopard ignores creator codes when launching documents, something every Mac OS prior to 10.half dozen has supported - it's been function of the Mac Os since the beginning.
At that place is no write back up for HFS+ volumes (floppies, hard drives, etc.)

Snow Leopard was replaced with OS X 10.seven Lion on July 20, 2011 after just 11 months at the helm.

Minimum Hardware Requirements

Intel-based Mac
1 GB of RAM, although ii GB is strongly recommended
5 GB of available drive space
DVD-compatible optical drive
Grand Central Dispatch requires a dual-core CPU
64-bit support requires a Core 2 or newer CPU
OpenCL is compatible with all current Macs. It is not compatible with:

iMacs released earlier March 2009
Mac mini released before March 2009
MacBook released earlier Oct 2008
MacBook Pro released before June 2007
original MacBook Air
Mac Pro released earlier January 2008 (Jan. 2008 and afterward models with unsupported video cards tin can used the discontinued GeForce 8800 upgrade kit - Apple part no. MB137Z/A - for OpenCL support. The GeForce GT 120 retails for $149, is designed to work with the 2009 Mac Pro and has been reported to work with the 2008 model too.)

Downloadable Updates

Standalone Updates allow you update to a newer version of Mac Bone X from your hard drive instead of using Software Update, which requires an Internet connexion. Download the ane(s) you lot demand and install them subsequently mounting the deejay epitome and launching the Installer program.

There are two types of Standalone Updates: Private (or Delta) and Combo.

Private Updates update one version of Mac OS X to the next version. For case, the Mac OS X ten.half dozen.4 Update updates Mac Os 10 10.6.3 to version 10.half dozen.four. Individual Updates are as well known as Delta Updates.
Combo Updates update the base of operations version of a Mac Bone X release to the version specified in the Combo Update, including all intermediate updates. For instance, the Mac Os X 10.6.4 Combo Update updates any before version of Mac Os X 10.6 to Mac Os Ten ten.6.4 using a unmarried installer, as opposed to installing the individual Mac Os Ten ten.6.1, ten.6.ii, 10.half dozen.3, and ten.6.4 updates.

Standalone Updates are generally bachelor 24 to 48 hours later on the Update is bachelor through Software Update.

If you fire a Standalone Update to CD, its deejay image must be copied to your desktop or another location on your Mac Bone X startup disk in order to exist installed.

This folio will be updated equally new Standalone Updates become available.

Mac Os 10 10.six.ane

Mac OS 10 10.6.2

Mac Os Ten ten.six.3

Mac Os Ten x.6.4

Mac OS 10 10.half-dozen.v

Mac OS X 10.half-dozen.6

Version 10.half dozen.half dozen introduced the Mac App Store.

Mac OS X 10.six.7

Mac Os X 10.half-dozen.eight

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