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Systems Software - Coggle Diagram
Systems Software
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Utility Software
Disk Defragmentation
The defragmenter attempts to put all of the files back into contiguous chunks. The free space that is available on the disk is also reorganised to become contiguous.
Compression software
Lossy
Compresses the file by removing some data. Reduces file quality, like resolution and colour depth.
Lossless
Compresses the file but no data is lost. Common words and values are replaced by a token, this is called 'zipping' data.
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Encryption
Scrambles data to make it unreadable while it is transmitted. Means data can not be read online. Converts plaintext into ciphertext.
Management
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Peripheral management
peripherals are anything that's not connected to the CPU . many people think this is outside of the computer like a printer but it also includes internal storage
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peripheral management is also responsible for managing printing and spooling of necessary data and that's why there is a delay between printing and when the instruction was sent
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File management
allows the creator to make , move, edit or delete files
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