Later models replaced the Motorola 68k processor with the newer PowerPC architecture, introduced in 1994. During the 1990s, the standard was based on a proprietary operating system (Mac OS System 7) and the Motorola 68000 series of microprocessors. The Apple Macintosh is a brand of personal computers created by Apple Inc. The Power Macintosh 8100/80AV, a period machine meeting the minimum specifications for Doom.
