| 摘要 |
<p>A magnetic disc apparatus comprises a positioning assembly (22) for positioning magnetic heads (17,18,19,20) relative to magnetic discs (13,14) by moving the magnetic heads of a magnetic head drive Unit (21) in response to a pair of positioning servo-information (27,28) which is disposed on the stacked magnetic discs, and the pair of positioning servo-information to be read by the magnetic heads comprises pieces of servo-information on the magnetic discs that are axially spaced apart from each other.</p> |
