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Introduced: October 18, 1993
Logic Board Processor:
68LC040 Processor Speed:
25 MHz
The clock input runs at 50 MHz;
however, the processor itself is clocked at 25 MHz, so
technically it is only a 25 MHz processor.
PMMU:
Integrated FPU:
none Bus Speed:
25 MHz Data Path:
32-bit ROM Size:
1 MB Level 1 Cache:
8K Level 2 Cache:
none Expansion Slots:
1 LC PDS Battery:
3.6V Lithium Memory RAM Type:
72-pin SIMM RAM Slots:
1 Min - Max RAM:
4 MB - 36 MB Minimum RAM Speed:
80 ns Install in groups of:
1 RAM Sizes:
1, 2, 4, 8, 16, 32 MB Onboard RAM:
4 MB
Ports ADB:
1 USB:
none FireWire:
none Video:
DB-15 Floppy:
none SCSI:
DB-25 Geoports:
none Ethernet:
none Mic Type:
PlainTalk Other ports:
Printer, modem, speaker
Image Credit: Apple Inc.
Image Credit: Apple Inc.
Video Standard VRAM:
512K (2 x 256K) Maximum VRAM:
1 MB (2 x 512K) Display Resolution:
512 x 384, 16-bit (2 x 256K),
16-bit (2 x 512K) 640 x 480, 8-bit (2 x 256K),
16-bit (2 x 512K) 832 x 624, 8-bit (2 x 256K),
16-bit (2 x 512K) 1024 x 768, 4-bit (2 x 256K),
8-bit (2 x 512K) 1152 x 870, 4-bit (2 x 256K),
8-bit (2 x 512K)
Storage Standard CD-ROM:
none Internal Hard Drive:
SCSI (230 MB) Floppy Disk Drive:
1.44 MB manual
Operating System Addressing Modes:
24-bit or 32-bit Original OS:
7.1P3 Original Enabler:
System Enabler 364 AppleTalk Version:
57.0.4 Compatible MacOS:
7.1P3 For additional information on
operating systems:
See this article Miscellaneous Macintosh Counterpart:
Macintosh Quadra 605 or
Macintosh LC 475 Form Factor:
LC Dimensions (Inches):
2.9 H x 12.2 W x 15.3 D Average Weight (lbs):
8.8 Gestalt ID:
89 Original Price:
$1800 US Comments
The Performa 476 was identical to the Performa 475 except it shipped with a larger 230 MB
hard drive.
