First-Generation Second-Generation PPCP Specification Feature Power Macintosh Power Macintosh Power Macintosh ======== ================ ================= ================== Processor PowerPC 601 PowerPC 601, 603 All PowerPC Models Type or 604 -------------------------------------------------------------------------- Processor None By replacing By replacing Upgrade processor processor subsystem card subsystem card -------------------------------------------------------------------------- OS Support Mac OS Mac OS Mac OS, OS/2, AIX, Netware, Solaris and Windows NT -------------------------------------------------------------------------- External Up to 1MB Up to 4MB Up to 4MB Cache -------------------------------------------------------------------------- RAM 32-bit SIMM 64-bit DIMM 64-bit DIMM expansion -------------------------------------------------------------------------- Maximum RAM 72-264 MB 1 GB-1.5 GB To be determined -------------------------------------------------------------------------- NVRAM Macintosh PRAM 8 KB 8 KB -------------------------------------------------------------------------- Support for None, 16 bpp, 16 bpp or 24 bpp 16 bpp or 24 bpp 21-inch or 24 bpp monitors -------------------------------------------------------------------------- Sound Macintosh 16-bit, Macintosh 16-bit, Both Macintosh and 44.1 MHz, stereo 44.1 MHz, stereo SoundBlaster- input and output input and output compatible stereo input and output -------------------------------------------------------------------------- Internal 160 MB to 1 GB 250 MB to 2 GB To be determined hard disk -------------------------------------------------------------------------- Additional One 5.25-inch, One 5.25-inch, To be determined internal one or two one or two drives 3.5-inch 3.5-inch -------------------------------------------------------------------------- SCSI buses 1 internal, 1 fast internal, To be determined 1 external 1 external -------------------------------------------------------------------------- IDE bus No No Yes -------------------------------------------------------------------------- Floppy disk MFM or GCR MFM or GCR MFM only format -------------------------------------------------------------------------- Ethernet AAUI AAUI or 10BaseT 10BaseT -------------------------------------------------------------------------- GeoPort 2 2 1-2 serial ports -------------------------------------------------------------------------- x86- None None 0-2 compatible RS-232 serial ports -------------------------------------------------------------------------- IEEE P1284 None None In some models parallel ports -------------------------------------------------------------------------- NuBus slots 1-3 None None -------------------------------------------------------------------------- PCI slots None 3-6 3-6 -------------------------------------------------------------------------- ISA slot None None None
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