There are various types of mediums that can be used for backing up the computer. The type required will depend on the type of computer back up being performed and the amount of information being backed up.
Some ideas for computer back up mediums would be:
- Tape back up
A tape back up can hold lots of information. This type of back up medium can be slow to use and be costly for an average computer user.
- CD-R or CD-RW
CDs and CD-RWs can be a more cost effective alternative. You will require some software to be able to write to the cd.
CD-Rs you can only write to once. You cannot replace the information on the cd with updated information. It can appear that you have erased something from the cd but you have not reclaimed the space on the cd for use again.
CD-RWs on the other hand, can be rewritten. It would be more cost effective in the long run if you paid the higher price for this back up medium if you have information that is continually changing and being resaved. When a CD-RW is erased, the space is reclaimed and therefore reusable. A program like Nero which compares what is on the CD with what you wish to copy to the CD can then overwrite old versions of files if you wish.
- External Hard Drive
An external hard drive is investment worth considering the time to reinstall things and the number of disks that would be required if a lot of information has been backed up.
The added benefit of an external hard drive is that it is portable (if you go on a business trip you can take it with you) and can be stored somewhere secure for safe keeping.
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