Macintosh LC 475


Macintosh LC 475


Introduced: October 21, 1993
Terminated: July 15, 1996

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:   Integrated - only available via a 68040 upgrade
Bus Speed:   25 MHz
Data Path:   32-bit
ROM Size:   512K (Expandable to 1 MB)
Level 1 Cache:   8K
Level 2 Cache:   none
Expansion Slots:   1 LC III PDS
Battery:   3.6V Lithium


Macworld, December 1993
(Macworld, December 1993) The Quadra 605, LC 475, and Performa 475 and 476 all used the same system board.





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


Macintosh LC 475



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

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 (80 - 250 MB)
Floppy Disk Drive:   1.44 MB manual

Operating System
Addressing Modes:   24-bit or 32-bit
Original OS:   7.1
Original Enabler:   System Enabler 065
AppleTalk Version:   57.0.4

Compatible MacOS:
7.1
7.1.1 (Pro)
7.5
7.5.1
7.5.3
7.5.5
7.6
7.6.1
8.0

For additional information on operating systems:
See this article

Miscellaneous
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:   $1085 US


Macintosh LC 475


Comments
The business version of the LC 475 was the Quadra 605. Apple sold the LC 475 to education markets. The consumer version was the Performa 475.



(Click) Additional LC 475 Images: