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/ MacWorld: Complete Mac Interactive / Macworld Complete Mac Interactive CD)(1994).iso / Handbook Interactive / How Hard Drive Works Movie (.mp4) < prev    next >
Apple QuickTime movie  |  1994-06-24  |  6.0 MB  |  320x240  |  15fps  |  43 seconds  |  [MooV/TVOD]
Transcription: A hard drive contains several rigid metal platters, stacked like records in a jukebox. Both sides of each platter are coated with magnetic particles. Each platter has a corresponding set of recording heads that dance across the platters as they read and write data. Unlike their counterparts in a floppy drive, a hard drive's heads do not touch the surface of the platters, but instead float a hair's width above them. If the drive is dropped or jostled, the heads can come in contact with the platters. causing a head crash that can result in lost data. If the crash is severe enough, it can gouge t ...