What are two purposes for having utility program on a laptop or desktop?
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Utility. Utility programs, commonly referred to as just "utilities," are software programs that add functionality to your computer or help your computer perform better. These include antivirus, backup, disk repair, file management, security, and networking programs.:

Utility software helps to manage, maintain and control computer resources. Examples of utility programs are antivirus software, backup software and disk tools. A device driver is a computer program that controls a particular device that is connected to your computer.