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Snow Leopard is available as an upgrade for Intel-based Macintosh computers. Single-user licenses and "family pack" licenses for up to five computers are available. For qualifying Mac computers bought after June 8, , Apple offered a discounted price through their "up-to-date" program provided that customers' orders were faxed or postmarked by December 26, There are three licenses available.
If you have purchased an Upgrade for Mac OS X Leopard license, then subject to the terms and conditions of this License, you are granted a limited non-exclusive license to install, use and run one 1 copy of the Apple Software on a single Apple-branded computer as long as that computer has a properly licensed copy of Mac OS X Leopard already installed on it. Subject to the terms and conditions of this License It is not entirely clear which license is offered with the retail version of Snow Leopard. On the other hand, some Apple press materials appear to indicate that this version is, in fact, the "Single Use" license:.
However, even if the retail edition of Snow Leopard is in fact a "Leopard Upgrade", the company has acknowledged that there is no technical barrier in that edition preventing a direct upgrade from Mac OS X "Tiger". Mac OS X Snow Leopard is intended to be a release aimed to refine the existing feature set, expand the technological capabilities of the operating system, and improve application efficiency.
Many of the changes involve how the system works in the background and are not intended to be seen by the user.
For example, the Finder application was completely rewritten in the Cocoa application programming interface. Despite significant changes in the software, users will experience almost no changes in the user interface. Snow Leopard includes the following changes:. The While the Finder was completely rewritten in Cocoa , it did not receive a major user interface overhaul.
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Instead, the interface has been modified in several areas to promote ease of use. These changes include:. As with most upgrades of Mac OS X, new wallpapers are available. There are new wallpapers in the Nature two of which are of snow leopards , Plants and Black and White sub-folders under the Apple folder. Furthermore, there are new Apple wallpaper sub-folders with multiple wallpapers:. New solid colors can be used as wallpapers as well.
There is a new blue and gray, as well as a solid kelp which serves as the "green wallpaper. Mac OS X Tiger added limited support for bit applications on machines with bit processors; Leopard extended the support for bit applications to include applications using most of Mac OS X's libraries and frameworks. In addition, the Mac OS X kernel has been rebuilt to run in bit mode on some machines.
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Newer Xserve and Mac Pro machines will run a bit kernel by default; newer iMac and MacBook Pro machines can run a bit kernel, but will not do so by default. Stuart Harris, software product marketing manager at Apple Australia, said, "For the most part, everything that they experience on the Mac, from the bit point of view, the applications, the operating system, is all going to be bit, but that at this stage there were very few things, such as device drivers, that required bit mode at the kernel level". With some tweaking, the Unibody MacBook can be set to boot the bit kernel.
Grand Central Dispatch uses the multiple processor cores now in every new Macintosh for more efficient performance. Due to the technical difficulties traditionally involved in making applications optimized for multicore CPUs, the majority of computer applications do not effectively use multiple processor cores. Grand Central Dispatch includes APIs to help programmers efficiently use these cores for parallel programming. Grand Central Dispatch shifts thread handling focus to itself rather than leaving it to specific applications to distribute jobs evenly across cores and clears up unused memory created by inactive or old threads to achieve maximum performance.
Apple is also releasing APIs for Grand Central Dispatch for developers to use in their applications and also to analyze specific blocks of code running on Grand Central Dispatch. A new C and Objective-C language feature named " Blocks " facilitates creation of code that will easily optimize to take advantage of Grand Central Dispatch. OpenCL Open Computing Language addresses the power of graphics processing units GPUs to leverage them in any application, and not just for graphics-intensive applications like 3D games.
OpenCL automatically optimizes for the kind of graphics processor in the Mac, adjusting itself to the available processing power. OpenCL provides consistent numeric precision and accuracy, fixing a problem that has hampered GPU-based programming in the past. Only the most process intensive parts of the application need to be written in OpenCL C without affecting the rest of the code. CUPS the printing system used in many Unix-like operating systems has been updated to version 1. CUPS 1. Power management has been improved, with implementation of a new wake on demand feature supported on more recent Macintosh hardware.
Should the request require the host computer to wake up , the router sends the necessary special wake-up-packet  to the sleeping computer. The Safari web browser has received updates to version 6. Snow Leopard breaks compatibility with several older versions of some applications, such as Parallels Desktop 3. Printer and scanner drivers used by previous versions of Mac OS X are not compatible with Snow Leopard and will be replaced during Snow Leopard installation. Since the initial release of Snow Leopard many manufacturers have provided compatible drivers that are available via Software Update.
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Engadget's opinion was that this could be largely because most users would not see a noticeable change in the look and feel of the system. CNET editors gave it 4 stars out of 5, stating "Intel Mac users will like Snow Leopard's smartly designed interface enhancements, and its Exchange support is a must-have especially with Outlook for Mac on the way.
On October 21, , SFGate blogger Yobie Benjamin wrote that the "MacBook Pro that came preloaded with Snow Leopard kicks butt and is a screaming fast machine", but "when I tried to upgrade one of my 'older' MacBooks, it was a fricking disaster from hell". Apart from upgrading, Benjamin also tried a clean install. But he complained of slowness even after his clean install. He wrote, "I ended up downgrading back to OSX If you want to roll the dice and try, go ahead Lesson learned I'll wait.
Mac OS X v Mac OS X Server includes these features and other server-related features.
Apple initially stated that Server would include ZFS support, but mention of this feature later disappeared from Apple's website and it was not included in the final release due to licensing issues. The download is 3. From Wikipedia, the free encyclopedia. This is the latest accepted revision , reviewed on 28 July Mac OS X Macintosh Unix . Rhapsody Developer Release Hera Server 1. The Open Group. Archived from the original on November 16, Retrieved December 4, Apple Inc.
August 24, July 25, September Archived PDF from the original on June 14, Retrieved February 8, September 9, Retrieved July 28, September 12, Archived from the original on May 28, Retrieved July 22, January 27, Ars Technica. Archived from the original on January 7, Retrieved June 14, NPD Group.
September 17, Retrieved May 7, Archived from the original on December 8, Retrieved December 2, Archived from the original on July 21, Retrieved July 20, Archived from the original on November 5, Retrieved November 5, Low End Mac. October 4, Retrieved August 10, Apple Store UK. Retrieved October 20, Archived from the original on August 31, Retrieved May 23, Archived PDF from the original on November 22, Retrieved February 22, Archived PDF from the original on September 22, Retrieved February 1, June 8, Archived from the original on June 11, Retrieved September 4, Mossberg August 26, The Wall Street Journal.
Archived from the original on August 28, Retrieved August 27, Archived from the original on February 13, Archived from the original on August 30, A dialog box is displayed, listing any Bonjour printers on your local network. It may take a minute or two for your printer to appear. If your printer does not appear, choose Add Printer from the Printer pop-up menu. Printers that are turned on and connected to the local network wireless and Ethernet should appear as Bonjour devices.
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On larger networks, outside the Bonjour link-local network, your printer may not show up in the list. In this case, you can connect to your printer using its IP address. In the toolbar, click IP. This is the preferred protocol to connect to HP printers. The system should automatically select the appropriate HP print driver in the Print Using pull down menu. Use the HP Utility to manage and troubleshoot the printer. Please check your users guide to find out if your Designjet printer includes HP Utility support.
In the list of devices on the left side of the dialog the HP printer queue , select your HP Designjet printer. Click the Utility tab at the top of the window, and then click Open Printer Utility. The HP Utility opens. Features and options may vary depending on your printer model. The HP Utility can also be launched from the printer icon in the dock to open the Printer Browser window.
Double click on the printer icon. The Printer browser window opens. A few different ways to open the printers Embedded Web Server include: 1 From Safari — open the Bonjour tab under the book icon pull down menu and select the printer. Please check your users guide to verify if your printer includes Embedded Web Server.
Additionally, some printers can be managed by the System Maintenance Utility. Please check your users guide to find out if your Designjet printer supports the System Maintenance Utility. If the Apple Software Update application is not launched in your system, please follow the same steps as listed above in the Printing from a USB Printer section to create your queue.
For network setup, please follow the same steps as listed above in the Printing from a Network Printer section. The latest drivers for these models should be available from Apple Software Updates. It is important to have the Macintosh connected to the internet during upgrade and installation to access Apple Software Updates. Select a location. Europe, Middle East, Africa. Asia Pacific and Oceania. Select a language. Confirm Back. Search all support. Search help. Loading Results.