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utility applications - Coggle Diagram
utility applications
data backup/restore
we need to backup our data in case it gets damaged lost or gets stolen e.g., the hard disk fails,a virus infects the data, user deletes data or a fire destorys the storeage facility
this will take up a lot of time so we may choose to only backup the data when it has changed this is called incremental backup
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data can be backup to other hard disks, magnetic tape or to servers on the internet e.g., the cloud
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disk fragmentation
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a computer stores its files on a disk and even though large disks may not have a single continuous block of empty space
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