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bluejay

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About bluejay

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  • Location
    SoCal
  • Interests
    Retro Gaming... Duh!
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    Jupiter Lander
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    Missile Command

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  1. Difference between Apple DuoDisk and Disk II?

    1. Show previous comments  1 more
    2. bluejay

      bluejay

      Are there any differences that affect anything?

       

    3. Keatah

      Keatah

      No differences in track-to-track or sector access I know of. But the mechanics are entirely different. Spiral groove in disk vs band pulley. Electronics are substantially the same. Maybe more noise-free because "newer" and more shielding. Also has optical write protect notch detection, so you must use black or opaque tape to activate WP.

       

      The original Disk II is a Shugart mechanism, forget what the newer one is made. Both are quite reliable in the end.

    4. Keatah

      Keatah

      No differences in track-to-track or sector access I know of. But the mechanics are entirely different. Spiral groove in disk vs band pulley. Electronics are substantially the same. Maybe more noise-free because "newer" and more shielding. Also has optical write protect notch detection, so you must use black or opaque tape to activate WP.

       

      The original Disk II is a Shugart mechanism, forget what the newer one is made. Both are quite reliable in the end.

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