Updating mac os 10 5 system requirements
Leopard can be "hacked" (see below) to install on these G3 and pre-867 MHz G4 machines but the system may behave erratically and many of the programs, features, and functions may not work properly or at all.
As of Mid 2010, some Apple computers have firmware factory installed which will no longer allow installation of Mac OS X Leopard.
It retailed for 9 Leopard was superseded by Snow Leopard (version 10.6).
Leopard is the final version of Mac OS X to support the Power PC architecture as Snow Leopard functions solely on Intel based Macs.
Leopard provides a framework to use public key signatures for code signing to verify, in some circumstances, that code has not been tampered with.
Of the two firewall engines, only the Application Layer Firewall is fully exposed in the Leopard user interface.Mac OS X Leopard (version 10.5) is the sixth major release of Mac OS X (now named mac OS), Apple's desktop and server operating system for Macintosh computers.Leopard was released on October 26, 2007 as the successor of Tiger (version 10.4), and is available in two editions: a desktop version suitable for personal computers, and a server version, Mac OS X Server.Other notable features include support for writing 64-bit graphical user interface applications, an automated backup utility called Time Machine, support for Spotlight searches across multiple machines, and the inclusion of Front Row and Photo Booth, which were previously included with only some Mac models.Apple missed Leopard's release time frame as originally announced by Apple's CEO Steve Jobs.