The OS uses applications called utilities which allow the user to manage the computer. There are many different utility programs and they may vary across operating systems
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Backup
This allows the user to restore the system to a previous state which is saved as a backup. This is only usually used if a system malfunctions.
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Disc Cleaner
The storage drive is divided into a number of clusters. The table of contents serves as an address book, keeping a record of each file and the clusters used to store that file.
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File Defragmentation
Defragmentation involves rearranging the information on a disk so that files appear in continuous sequences of clusters. This will improve file access times. Most modern operating systems run this process automatically.
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Formating
- Storage drives need to be formatted to be compatible with an OS. The OS usually formats storage media when it is connected to the computer. It is often the case that a storage drive cannot be compatible with both Windows and Mac OS X.
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User Accounts
- allow the user to allocate specific users and protects personal files and programs from unauthorised access.
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Encryption
can encrypt data when it is stored, or whenever it is transmitted over a network.
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Anti Virus software
detects and blocks viruses.
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Firewall
can be used to filter between trusted and untrusted networks and prevent programs from communicating through the use of ports.
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Other cards in this set
Card 2
Front
Backup
Back
This allows the user to restore the system to a previous state which is saved as a backup. This is only usually used if a system malfunctions.
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