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System software (Operating systems (Manage memory (OS keeps track of…
System software
Operating systems
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manage hardware
Drivers allow peripherals(any device that receives or sends data to CPU) connected to the computer to communicate with the computers software and the user
manage users
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OS controls users access rights: ability to read certain data, write data, execute applications
Manage user interfaces
Provides the user with an interface e.g. GUI, command line, menu driven
Utility software
Disk defragmenter
Over time, data on hard disk may become mixed up(data for same app may not be next to each other)
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firewalls
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blocks ports that aren't safe/being used, and monitors the ones being used
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backups
creates a second copy of files to protect them in the event of the loss of data e.g. building fire, accidental deletion
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full backup - backs up all data in files selected, starting point for all types of backups
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-ives - backing up is slow, needs more storage space
incremental backup - only backs up files that have changed since the last backup, starts with full backup
+ives - less storage space, quicker to back up
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