Computer Basics

Link to Storage 6 - Storage: Caring for Disks

Link to Home - Jan's Illustrated Computer Literacy 101


To keep your storage media happy and healthy you must observe certain precautions.

Each medium has its own particular weaknesses and hazards to avoid. Be careful or suffer the consequences - lost data, which means, at best, lots of lost time and effort! This section is about floppy disks and hard disks only. Other storage media are discussed later.

Care of Hard Disks

Hard drive with top of case removed (Western Digital) There are fewer precautions for hard disks since they are more protected by being sealed in air-tight cases. But when damage does occur, it is a more serious matter. Larger amounts of data can be lost and hard disks are much, much more expensive that floppy disks.
 
Hard disks can have problems from magnetic fields and heat like floppies do, but these are very rare.
 
Most problems occur when the read/write head (looks like a pointer in the photo) damages the metal disk by hitting or even just touching it. This is called a head crash.
 
rest in peace!When the computer is on, the hard disk is spinning extremely fast. Any contact at all can cause pits or scratches. Every scratch or pit is lost data. Damage in the root directory turns the whole hard disk into a lovely doorstop! It's completely dead.
 
So the goal here is to keep that read/write head where it belongs, just barely above the hard disk, but never, ever touching it.

Don't

no kicking
Jar the computer while the disk is spinning.
no on-off quickly
 
Turn the computer off and quickly back on before spinning has stopped.
no drop
 
Drop it - ever.


Where you are:
JegsWorks > Lessons > Computer Basics


  1. Computer TypesArrow: Subtopics
  2. ApplicationsArrow: Subtopics   
  3. InputArrow: Subtopics
  4. ProcessingArrow: Subtopics  
  5. OutputArrow: Subtopics
Link to Storage 6. Storage Arrow: Subtopics list open 
    Intro
    Magnetic Disks
    Disk Format
    Disk Capacity
    Accessing Data
    Caring for Disks
    Caring for Data
    Magnetic Tape
    Optical Disks
    Other Devices
    Quiz
  7. Computer to ComputerArrow: Subtopics
  8. System SoftwareArrow: Subtopics
  9. ProgrammingArrow: Subtopics

  10. What You SeeArrow: Subtopics
  11. Hands On!Arrow: Subtopics
  12. On Your OwnArrow: Subtopics

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Last updated: 11 Aug 2010