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Text File  |  1988-08-02  |  1.2 KB  |  23 lines
  1. As you saw,  all 3 files  were successfully  written to the drive. Now,
  2. should a  request be  made to read File "X",  your system  can move its
  3. read-write heads  (those mechanisms  which  actually read and write the
  4. data to and from the drives) to the beginning of File "X", and smoothly
  5. move across the drive, reading sector by sector until the file has been
  6. completely  read.  Should you  wish to  read File "Z",  the heads would
  7. simply move to the beginning of File "Z" and begin the same process.
  8.  
  9. Now let's delete File "Y"....this will result in a "disk map" that looks
  10. like this:
  11.  
  12.  
  13. ┌──────────────────────────────────────────────────────────────────────────┐
  14. │XXXXXXXXXXXXXXXXXXXXXXX          ZZZZZZZZZZZZZZZZZZZZZZZZZZZZ             │
  15. │                                                                          │
  16. │                                                                          │
  17. │                                                                          │
  18. │                                                                          │
  19. │                                                                          │
  20. └──────────────────────────────────────────────────────────────────────────┘
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