The Mac transition to PowerPC processors was the process of switching the central processing units (CPUs) of Apple's line of Macintosh computers from the Motorola 68000 series to PowerPC processors co-developed with IBM and Motorola. The transition began in March 1994 with the launch of the Power Macintosh series and was largely completed by mid-1996, though Apple continued supporting 68k systems in its software until 1998.