Editing Mac OS X Panther (section)

==System requirements==
Panther's system requirements are:<ref>{{cite web|title=Mac OS X Panther: System requirements|url=http://support.apple.com/kb/HT2176|publisher=[[Apple, Inc.|Apple]]|access-date=February 22, 2010|archive-date=April 22, 2014|archive-url=https://web.archive.org/web/20140422185415/http://support.apple.com/kb/HT2176|url-status=live}}</ref>
*[[PowerPC G3]], [[PowerPC G4|G4]], or [[PowerPC G5|G5]] processor (at least 233&nbsp;[[MHz]])
*Built-in [[USB]]
*At least 128&nbsp;[[Megabyte|MB]] of [[RAM]] (256&nbsp;MB recommended, minimum of 96&nbsp;MB supported unofficially)
*At least 1.5&nbsp;[[Gigabyte|GB]] of available hard disk space
*[[CD drive]]
*Internet access requires a compatible service provider; iDisk requires a [[.Mac]] account
Video conferencing requires:
*333&nbsp;MHz or faster PowerPC G3, G4, or G5 processor
*Broadband internet access (100 [[kbit/s]] or faster)
*Compatible [[FireWire]] [[DVD|DV]] camera or [[web camera]]

Because a [[New World ROM]] was required for Mac OS X Panther, certain older computers (such as [[Power Macintosh G3|beige Power Mac G3s]] and 'Wall Street' PowerBook G3s) were unable to run Panther by default. Third-party software (such as [[XPostFacto]]) can, however, override checks made during the install process; otherwise, installation or upgrades from Jaguar fails on these older machines.

Panther still fully supported the Classic environment for running older Mac OS 9 applications, but made Classic application windows double-buffered, interfering with some applications written to draw directly to screen.