Macintosh 512K

System

• Introduced: 9/10/84
• Discontinued: 4/14/86
• Floppy Size: 400K
• Internal HD: none none
• Upgrade From: none
• Upgrade To: Plus
• Form Factor: 128
• Weight: 16.5 lbs.

Logic Board

• Main Processor: 8 MHz 68000
• PMMU: none
• FPU: none
• Data Path: 8 MHz 16-bit
• Secondary Processor: none
• Slots: none
• MIPS Rating: .7

Memory

• Memory on Logic Board: 0.5MB
• RAM Range: 0.5MB to 0.5MB
• RAM Slots: 0 n/a
• RAM Type: ns n/a SIMMs in groups of n/a

Video

• Built-in Display: 9" monochrome CRT
• VRAM Configuration: built-in CRT
• VRAM Speed: n/a
• VRAM Expansion: built in
• Color Bit Depth by Screen Resolution:
  • 512x384: 1-bit 1-bit = Black & White, 2-bit = 4 colors, 4-bit = 16 colors, 8-bit = 256 colors, 16-bit = thousands, 24-bit = million

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

• Notes: Screen size is 512x342.

Sound

• Sound In: none
• Sound Out: mono, 8-bit
• Microphone Port: none

Ports

• ADB:
• Video: none
• Floppy: DB-19
• SCSI: none
• GeoPorts:
• Ethernet: none
• Microphone Port Type: none
• Ports: Printer Modem Speaker
• Notes: The serial ports in this system do not support handshaking or synchronous modems.

Power

• Source: .5A 105-125V 50-60 Hz
• Consumption: 60 W or 205.2 BTU
• Battery Type: 4.5V alkaline, #523

Software

• Addressing Modes: 24-bit
• Original System Software: 0.7
• Original Enabler: none
• ROM ID: $0000
• ROM Version: n/a
• ROM Size: 64K
• AppleTalk Version: n/a
• System Software Supported:
  • <1.0, 1.0, 1.1, 2.0, 2.0.1, 5.0, 5.1, 6.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5, 6.0.7, 6.0.8