Write protection - PowerPoint PPT Presentation

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Title:

Write protection

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Don't need to clean the laser lens unless highly dusty ... System will boot from the hard drive when you do a warm restart, but not from a cold boot ... – PowerPoint PPT presentation

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Title: Write protection


1
Write protection
2
Capacities
3
Floppy controller resources
4
Diskette preparation
  • Format
  • Records sector structure
  • Creates file allocation table
  • Destructive process
  • Purchase pre-formatted floppies
  • PC or Macintosh formats

5
Boot floppies
  • Minimal operating system files
  • Bootable boot sector
  • Files and structure vary by operating system
  • Windows 2000 Professional and Windows XP also
    require CD or hard drive during boot time

6
Hard drive maintenance
  • Checking for disk errors
  • Freeing space
  • Defragging
  • Recovering deleted files
  • Diagnostic utilities

7
Optical disc and drive cleaning
  • Dirt and scratches cause problems
  • Wipe with soft-lint free cloth from center out
  • Can use water or gentle soap
  • Dont use cleaners or abrasives
  • Dont need to clean the laser lens unless highly
    dusty environment

8
Troubleshooting hard disks
  • Cannot access drive at all
  • Cannot boot from the hard drive
  • Space on drive doesnt match advertised space
  • Files becoming corrupted
  • System will boot from the hard drive when you do
    a warm restart, but not from a cold boot
  • Drive letter incorrect
  • Cannot use the full space of a very large drive
  • Drive not autodetected during the boot process

9
Troubleshooting CD drives
  • No audio plays from CD
  • CD drive not found
  • Disc cant be read
  • Buffer under run
  • Write process fails several minutes after
    starting
  • Zip files are corrupted when recorded on a SCSI
    CD-RW drive
  • Burned CD-RW disc cant be read on another
    computer

10
Troubleshooting DVD drives
  • DVD cant be played when two displays are being
    used
  • UDF formatted discs cant be read
  • Cannot play DVD movie

11
Unit summary
  • Described hard drives and file systems, and
    installed IDE and SCSI hard drives
  • Described optical data storage, installed and
    used optical drives and discs
  • Installed and used floppy drives and disks, and
    installed, used, and safely removed USB flash
    drives
  • Maintained and resolved problems with data
    storage devices
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