Macintosh II

System

• Introduced: 3/2/87
• Discontinued: 1/15/90
• Floppy Size: 800K (x2)
• Internal HD: 40-80MB SCSI
• Upgrade From: none
• Upgrade To: II FDHD, IIx, IIfx
• Form Factor: II
• Weight: 24 lbs.

Logic Board

• Main Processor: 16 MHz 68020
• PMMU: opt. 68851
• FPU: 68881
• Data Path: 16 MHz 32-bit
• Secondary Processor: none
• Slots: 6 NuBus
• MIPS Rating: 2.6

Memory

• Memory on Logic Board: none
• RAM Range: 1MB to 20MB
• RAM Slots: 8 30-pin SIMM
• RAM Type: 120 ns 256K, 1, 4MB SIMMs in groups of 4
• Notes: 4MB or 16MB SIMMs cannot be put into Bank A, unless Macintosh II SuperDrive Upgrade is installed.

Video

• Built-in Display: none
• VRAM Configuration: requires video card
• VRAM Speed: n/a
• VRAM Expansion: n/a
• Color Bit Depth by Screen Resolution:
  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

Sound

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

Ports

• ADB: 2
• Video: none
• Floppy: none
• SCSI: DB-25
• GeoPorts:
• Ethernet: none
• Microphone Port Type: none
• Ports: Printer Modem Speaker

Power

• Source: 1.9A 90-270V 48-62 Hz
• Consumption: 230 W or 786.6 BTU
• Battery Type: n/a
• Soft Power
• Monitor Power Outlet

Software

• Addressing Modes: 24-bit
• Original System Software: 2.0
• Original Enabler: none
• ROM ID: $0178
• ROM Version: n/a
• ROM Size: 256K
• AppleTalk Version: 49
• System Software Supported: 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 7.0 7.0.1 7.1 7.1.1, (Pro) 7.5 7.5.1 7.5.3