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Chapter 18. More about Your iMac > Protecting your software and data

Protecting your software and data

The data on the disks is actually pretty fragile. If you have floppy disks or Zip disks that hold data, here are some rules to adhere to:

  • The most important rule is to keep them away from anything with magnets. That includes not only refrigerator magnets, but telephones, cell phones, radios, stereos, cameras, etc. Anything you can put in your purse or glove compartment and that needs to be turned on, you should keep away from disks.

  • I don't care what they say at airport security checks, I don't ever put disks through the machine. Even if the x-ray stuff doesn't affect the disks, often the mechanics in the conveyor belt can destroy data.

  • Don't keep disks in plastic bags. The static electricity that builds up in the plastic can adversely affect the magnetic data on the disks.

  • I've heard that dropping disks can actually shake little magnetic particles off the disks. I can't say that's ever happened to me, but I try not to drop them.

  • Don't keep disks in a hot car, and don't let them freeze.

  • If you have really important stuff, make more than one backup, and store the various backups in different places so if one place burns down or is burglarized, you still have copies somewhere else.


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