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Software (Utility software (Disk defragmentation (a computer stores its…
Software
Utility software
Disk defragmentation
a computer stores its files on a disk and even though large disks may not have a single continuous block of empty space to hold a single file, computers 'back up' a file into little parts or fragments
Backup
Incremental or full
data can be backup to other hard disks, magnetic tape or to servers on the internet(cloud backup).
when everything on a hard disk is backed up, it is known as a full backup.
this will take a long time, and so we may do this to only back up the data when It has changed. this is called incremental backup.
Task scheduler
the operating system schedules programs to run at particular times for example, you may set some programs to run every week/once a day, or even launch programmes on start up.
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Application Software
Packaged Software
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Low cost, Sometimes freeware
Microsoft work, photoshop etc.
Tailored Software
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Database management system for school, bank etc.
Anti Virus
a virus is a malicious software program designed to copy itself onto a computer in order to obtain, alter or delete stored data
Anti virus software is responsible for deleting, blocking and quarantining computer viruses
Modes of processing
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Multi-user systems
Known as time sharing, many different computers sharing the processor of a powerful computer