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Utility Software Flashcards
OCR GCSE J277 Computer Science specification
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Utility software
Software designed to perform specific tasks to maintain or optimise a computer system.
Encryption software
Utility software that scrambles data to protect it from unauthorised access, requiring a key to decrypt.
Defragmentation software
Utility software that reorganises fragmented data on a hard drive to improve access speed and efficiency.
Data compression software
Utility software that reduces the size of files to save storage space or make them easier to transmit.
Purpose of utility software
To perform maintenance tasks that help manage, optimise, and protect a computer system.
Examples of utility software
Encryption software, defragmentation software, and data compression software.
Defragmentation process
Reorganises files so that all parts are stored together, reducing the time needed to access them.
Advantages of encryption software
Protects sensitive data from being accessed by unauthorised users.
Advantages of data compression
Reduces file size, saving storage space and making files faster to transfer over a network.
Why defragmentation is not needed on SSDs
SSDs (solid-state drives) do not have moving parts, so file fragmentation does not affect their performance.

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