This is a CPU drop-in DVD used to install Mac OS X Leopard 10.5. This disk can be installed on any PowerPC or Intel based Mac which matches the system requirements of 10.5.
This disk is used to upgrade a Mac system which is currently running a version of 10.4 (Tiger); the operating system is designed to be installed over the top of the previous system without the need to carry out a fresh install.
This disk was included only with machines that were shipped with 10.4 (Tiger).Please note that this software does not include any of the iLife or iWork applications.System Requirements:• A PowerPC G4 (867MHz or faster), Power PC G5, Intel Core Duo or Intel Core 2 Duo Processor
• 9GB of free hard drive space
• 512MB of RAM
• DVD drive for installation.