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J277 1.5.2
Utility software
Term | Definition |
---|---|
Utility Software | Tools that assist in managing and maintaining computer systems e.g. degfragmentation |
Defragmentation | Utility which speeds up hard drive read/write access by moving files physically closer together |
Firewall | Blocks unauthorised access by scanning all data packets entering and leaving the network |
Encryption | The purpose of scrambling data so it can be sent securely over networks and requires a key to read the data |
Compression | The process of reducing the physical size of files, normally for use online so they can be sent quickly |