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Macintosh Picture Format  |  1989-04-17  |  398KB  |  639x825  |  8-bit (256 colors)
Labels: book | bulletin board | poster | reckoner | sky
OCR: Macintosh Internal Hard Disk 20SC System Requirements To use Macintosh Internal Hard Disk 20SC you mus have Macintosh SE Macintosh SF/30 Macintosh II Y Macintosh IX personal computer Tochnical Specifications Capacity Data capacity 20 megabytes (formatted) Data surfaces Heads/Surface: Block size 512 bytes Total disk blocks 41,060 Blocks Track ..... ............... ......... Characteristic Average seck time 68 milliseconds Rotational speed: 3,600 rpm Startup time 20 seconds Spin-down time 20 seconds Interface Connects directly to the Macintosh SF Macintosh SE/30 Macintosh II Or Macintosh IIX the SCST 50-pin connector ............ Electrical Line voltage 85 to 270 volts requirements Frequency 47 to 64 hertz Maximun power: 60 watts ........................... Environmental Operating temperatur ...