Mac OS X Snow Leopard

Mac OS X Snow Leopard

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Native name
Developer	Apple Inc.
Written in
OS family	Unix-like
Working state
Source model	Closed source with open source components
Initial release	August 28, 2009
Released to manufacturing
General availability
Latest release	10.6.8

Mac OS X Snow Leopard (version 10.6) is an operating system developed by Apple Inc. and released on August 28, 2009. It is the seventh major release of Mac OS X, Apple's desktop and server operating system for Macintosh computers.

Overview

Mac OS X Snow Leopard was marketed as having "refined" the previous version, Mac OS X Leopard, with a focus on performance enhancements, greater efficiency, and the reduction of its overall memory footprint. Unlike previous versions of Mac OS X, Snow Leopard did not introduce a large number of new features, but rather focused on "under the hood" changes.

Features

Performance Improvements

Snow Leopard was designed to improve the performance of the Mac OS X operating system. It introduced a number of enhancements that made the system faster and more responsive. These included:

• 64-bit Architecture: Snow Leopard was the first Mac OS X version to fully support 64-bit applications, allowing for improved performance and the ability to use more than 4GB of RAM.
• Grand Central Dispatch: This technology was introduced to optimize the use of multi-core processors, allowing applications to run more efficiently by distributing tasks across multiple cores.
• OpenCL: OpenCL (Open Computing Language) allowed developers to tap into the power of the GPU for general-purpose computing tasks, improving performance for applications that could leverage this technology.

User Interface Enhancements

While Snow Leopard did not focus on new user-facing features, it did include some refinements to the user interface:

• Exposé Integration in the Dock: Exposé, a feature for managing open windows, was integrated into the Dock, allowing users to view all open windows of an application by clicking and holding its icon in the Dock.
• Stacks: The Stacks feature in the Dock was improved, allowing users to scroll through files in a stack and view them in a grid or list view.

System Enhancements

• Finder: The Finder was rewritten in Cocoa, resulting in a more responsive and stable experience.
• QuickTime X: A new version of QuickTime, called QuickTime X, was introduced with a simplified interface and support for modern codecs.
• Safari 4: The Safari web browser was updated to version 4, offering improved performance and support for modern web standards.

Compatibility

Snow Leopard was the first version of Mac OS X to drop support for PowerPC-based Macs, requiring an Intel processor. This marked a significant transition for Mac users, as it meant that only Intel-based Macs could run Snow Leopard.

Reception

Mac OS X Snow Leopard was generally well-received by critics and users alike. It was praised for its performance improvements, stability, and the refinement of existing features. The decision to focus on "under the hood" changes rather than new features was seen as a positive move by many, as it resulted in a more polished and efficient operating system.

Also see

• Mac OS X Leopard
• Mac OS X Lion
• Apple Inc.
• Macintosh
• Unix-like