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Macintosh Picture Format  |  1989-04-17  |  443KB  |  639x825  |  8-bit (256 colors)
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OCR: Macintosh Internal Hard Disk 80SC System Requirements To use Macintosh Internal Hard Disk 80Sc you mus have Macintosh SF Macintosh SF/20 Macintosh II. Macintosh lICX or Macintosh IX persona computer Technical Specifications Capacity Data capacity 80 megabytes (formatted) Data surfaces: Heads /Surface Blocl size 512 bytes Total disk blocks 163.940 Blocks /Track and 35 Characteristic Average see time 20 milliseconds Rotational speed 3,662 rpm Startup time seconds Spin-down time seconds Interface Connects directly to the Macintosh SF Macintosh SE/30 Macintosh II. Macintosh IIcx Or Macintosh IIX via theSCSt 50-pin connector Electrical Line voltage 85 to 270 volts AC requirements Frequency 47 to 64 hertz Maximum power 60watts Environmental Operating temperature 50to 1040 F10 t0 600 requirement ...