Mac OS X v10.4 "Tiger"

Main article: Mac OS X Tiger

Mac OS X v10.4 "Tiger" was released on April 29, 2005. Apple stated that Tiger contained more than 150+ new features.[75] As with Panther, certain older machines were no longer supported; Tiger requires a Mac with a built-in FireWire port.[33] 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.[76] 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.

System requirements

Tiger was initially available in a PowerPC edition, with an Intel edition released beginning at 10.4.4; there is no universal version of the client operating system, although Tiger Server was made available on a universal DVD from version 10.4.7. While Apple shipped the PowerPC edition bundled with PowerPC-based Macs and also sold it as a separate retail box, the only way to get the Intel version was bundled with an Intel-based Mac. However, there were still unofficial places to buy the Intel version such as eBay, although the only Intel discs produced were the gray-colored "restore" DVDs supplied with new Macs that will only install on the model of Mac that they are intended for, unlike the retail DVD that can be used on any Mac supported by Tiger.

The system requirements of the PowerPC edition are:

• A PowerPC G3, G4, or G5 processor running at 333 MHz or more
• Built-in FireWire
• At least 256 MB of RAM (512 MB or 1 GB recommended)
• At least 3 GB of available hard disk space; 4 GB of disk space including the Xcode 2 Tools
• DVD drive (CD media exchange was available; offer ended 19 March 2007)

Tiger removed support for older New World ROM Macs such as the original iMacs and iBooks that were supported in Panther; however it is possible to install Tiger on these Macs using third-party software (such as XPostFacto) that overrides the checks made at the beginning of the installation process. Likewise, machines such as beige Power Mac G3s and “Wall Street” PowerBook G3s that were dropped by Panther (the preceding release of Mac OS X) can also be made to run both Panther and Tiger in this way. Also Tiger can be installed on unsupported New World ROM Macs by installing it on a supported Mac, then swapping hard drives. Old World ROM Macs require the use of XPostFacto to install TIger.

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