On Intel-based Macs, there are people who stick with Tiger for several reasons. Often a Tiger-based Mac will be a secondary machine repurposed just for this task. Some older software or peripherals will only run under OS 9, and Classic mode extends their lifetime. Using Classic mode on a Power Mac G3 or better, it is still possible to run many applications compiled for the original 680×0-based Macs as far back as the 1980s. On PowerPC machines, Tiger is the last version of OS X that supports Classic mode, the built-in virtualizer for Mac OS 9 applications. However there are many compelling and unique features in Tiger that make it an ideal or necessary OS on some Macs.
Mac OS X 10.4 Tiger uses less memory than Leopard, supports Classic Mode on PowerPC Macs, and, unlike Leopard, is supported on G3 Macs, so there are good reasons to install or reinstall it on your old Macs.Īs Apple refines Mac OS X 10.5 Leopard and moves closer to the release of 10.6 Snow Leopard, the 10.4 Tiger version of OS X seems destined to fade into computing history.