Macintosh LC III

System

• Introduced: 2/10/93
• Discontinued: 2/14/94
• Floppy Size: 1.44MB
• Internal HD: 80-160MB SCSI
• Upgrade From: LC, II
• Upgrade To: LC 475
• Form Factor: LC
• Weight: 8.8 lbs.

Logic Board

• Main Processor: 25 MHz 68030
• PMMU: integrated
• FPU: opt. 68882
• Data Path: 25 MHz 32-bit
• Secondary Processor: none
• Slots: 1 LC III PDS
• MIPS Rating: 6.3

Memory

• Memory on Logic Board: 4MB
• RAM Range: 4MB to 36MB
• RAM Slots: 1 72-pin SIMM
• RAM Type: 80 ns 1, 2, 4, 8, 16, 32MB SIMMs in groups of 1

Video

• Built-in Display: none
• VRAM Configuration: 512K VRAM
• VRAM Speed: 100 ns
• VRAM Expansion: built in
• Color Bit Depth by Screen Resolution:
  • 512x384: 16-bit
  • 640x400: 16-bit
  • 640x480: 8-bit
  • 640x870: 4-bit
  • 832x624: 8-bit 1-bit = Black & White, 2-bit = 4 colors, 4-bit = 16 colors, 8-bit = 256 colors, 16-bit = thousands, 24-bit = millions

    The maximum color depth listed for 640x870 is 8-bit, reflecting the capabilities of the Apple 15 inch Portrait Display

• Notes: 512K VRAM SIMMs may be installed, but only 256K of each SIMM will be used.

Sound

• Sound In: mono, 8-bit
• Sound Out: mono, 8-bit
• Microphone Port: Omni

Ports

• ADB: 1
• Video: DB-15
• Floppy: none
• SCSI: DB-25
• GeoPorts:
• Ethernet: none
• Microphone Port Type: Omni
• Ports: Printer Modem Speaker

Power

• Source: .42A 100-240V 47-63 Hz
• Consumption: 50 W or 171 BTU
• Battery Type: 3.6V lithium

Software

• Addressing Modes: 24-, 32-bit
• Original System Software: 7.1
• Original Enabler: System Enabler 003
• ROM ID: $067C
• ROM Version: n/a
• ROM Size: 1MB
• AppleTalk Version: 57.0.4
• System Software Supported: 7.1 7.5 7.1.1, (Pro) 7.5.1 7.5.3