Apple 5.25″ Drive


At A Glance

The Apple PC 5.25 Drive was aimed at providing easy data exchange between Apple computers and MS-DOS formatted 5.25″ 360Kb disks. The Apple 5.25 Drive was ideal for Macintosh users who wanted to use data created from MS-DOS programs in their Macintosh applications. Compatible with MS-DOS 5.25 inch disks, the Apple PC 5.25 drive allowed Macintosh SE and Macintosh II users to read and write files from MS-DOS-formatted media to Macintosh, and vice versa. The drive could be attached to a Macintosh disk drive controller card, either the Macintosh SE PC Drive Card or the Macintosh II PC Drive Card. You can view the original specifications of the Apple PC 5.25 Drive at the Apple site by clicking here.

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Original Specifications

  • Recording Media: 5.25 inch removable floppy disks
  • Capacity:
    • Formatted capacity: 360 kilobytes per disk
    • Recording surfaces: 2
    • Tracks per surface: 40
    • Tracks per inch (TPI): 48
  • Characteristics:
    • Average Seek Time: 19 milliseconds
    • Transfer Rate: 250 kilobytes per second
    • Rotational Speed: 300 RPM
    • Average Startup Time: 500 milliseconds
  • Power Consumption:
    • +12 (+/- 1.2) volts DC (maximum ripple 100 millivolts peak-to-peak)
    • Read/Write: 300 milliamps
    • Maximum stepping: 350 milliamps
    • Maximum Motor Start: 900 milliamps +5 volts DC



  • Interface:
    • Connects to Macintosh SE and Macintosh II via an internal drive card
  • Environmental requirements:
    • Operating temperature: 50 to 104 degrees F (10 to 40 C)
    • Relative Humidity: 20% to 80% condensing
    • Maximum altitude: 10,000 feet
  • Size and weight:
    • Height: 2.9 in (72 mm)
    • Width: 6.37 in (162 mm)
    • Depth: 8.3 in (207 mm)
    • Weight: 4.78 lbs (2.17 kg)



Problem with these specifications? Let us know.

For details of the PC 5.25 drive at the Apple Support web site, click here.

Wikipedia

For the Wikipedia entry on the PC 5.25 Drive click here
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