Because they are not solid state devices, hard drives rely on moving parts to access data, which can malfunction and cause your data to become unrecoverable. But just like all electronic devices, they are not immune to problems. Hard drives are meant to run for many years without crashing. Better yet, you could save the backups to a USB flash disk, which would also protect the files if the hard drive failed. For example, you may save several copies of a research paper on your hard drive as backup files in case you decide to use a previous revision. Backup is the most important computer term you should know.Ī backup is a copy of one or more files created as an alternate in case the original data is lost or becomes unusable.
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