Apple will release the desktop and server versions of its "Tiger" operating system at the end of this month.
Tiger will be officially sold as Mac OS X 10.4 and Mac OS X Server 10.4.
Both the desktop and server Tiger options support powerful 64-bit applications, as well as traditional 32-bit packages.
Tiger includes the Spotlight feature, a search technology that allows users to more easily find any document, e-mail or image stored on their Mac.
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Apple is also promoting the operating system’s Dashboard, which allows users to easily access news and other items while online. The iChat instant messaging software will also be bundled with the system.
The Tiger desktop version will cost around £70 and the server edition around £280.