Apple · Macintosh

Macintosh LC 475

Released 1993

A slim 68LC040 desktop with 25 MHz processor, colour video and an LC expansion slot.

Type
Compact
Processor
68LC040 25 MHz (Macintosh LC 475)
Memory
4 MB
Storage
80 MB – 230 MB
Screen
–
Weight
3.99 kg

Performance

Processor
68LC040 25 MHz (Macintosh LC 475)
CPU cores
1
Memory
4 MB
Storage
80 MB to 230 MB
CPU
Motorola 68LC040 running at 25 MHz, with integrated memory management, 8 KB L1 cache and no floating-point unit; Apple support lists a 50 MHz clock input, while its developer note confirms a 25 MHz processor clock
GPU
Built-in video with 512 KB VRAM supports 8-bit colour at 640 × 480 and 832 × 624; 1 MB VRAM raises both to 16-bit colour
Memory type
4 MB on the logic board and one 72-pin SIMM slot; Apple supports 4–36 MB total
Storage type
Internal 1.44 MB floppy drive and 80, 160 or 230 MB internal SCSI hard drive configurations in Apple's developer note; its support page gives an 80–250 MB range
Expansion slots
One LC III-compatible expansion slot; the 68LC040 cannot use a separate FPU card

Display

Screen
None built in

Design and power

Type
Compact
Weight
3.99 kg
Width × depth × height
310 × 389 × 74 mm
Operating system
macOS
Size and weight detail
Apple's 2.9 × 12.2 × 15.3 inch and 8.8 lb reference dimensions; metric fields are rounded conversions
Power supply
Maximum 30 W; 100–240 V AC, 47–63 Hz; 3.6 V lithium clock battery
In the box
Original System Software 7.1 with System Enabler 065. Apple lists 21 October 1993 as introduction; a separate first-sale month was not established.

Connections

Back ports
Apple Desktop Bus, DB-15 video, DB-25 SCSI, printer and modem serial ports, sound input and output; no built-in Ethernet
External displays
Built-in video supports up to 1152 × 870 pixels; colour depth depends on VRAM
Speakers
Internal speaker

Configurations

ProcessorMemoryStorageStorage type
68LC040 25 MHz (Macintosh LC 475)4 MB80 MBHard drive
68LC040 25 MHz (Macintosh LC 475)4 MB160 MBHard drive
68LC040 25 MHz (Macintosh LC 475)4 MB230 MBHard drive

Pros and cons

Pros

  • 68LC040 processor with integrated memory management
  • Expandable video memory
  • Slim desktop case

Cons

  • No floating-point unit
  • No built-in Ethernet
  • One memory expansion slot

Closest rivals

Model
TypeProcessorMemoryStorageScreenWeightReleased
CompactMotorola 68LC040 20 MHz (Macintosh Centris 610)4 MB80 MB––1993
CompactMotorola 68040 25 MHz (Macintosh Centris 650) or Motorola 68LC040 25 MHz (Macintosh Centris 650)4 MB–––1993
CompactMotorola 68040 25 MHz (Macintosh Centris 660AV)4 MB81.92 MB––1993

Sources

  1. support.apple.com/en-is/112204
  2. macdat.net/files/pdf/apple/developer_notes/macintosh_lc475_quadra605.pdf
  3. commons.wikimedia.org/wiki/File:Apple_Macintosh_LC_475.jpg

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