Utility programs1 Mukesh DasUtility SoftwareProvides additional functionality to the operating systemExample: ile Security software to protect !les and folders of information as well as to ena"le you to send secure e#mail messagesMukesh Dasp.4.106 Fig. 4.8D$S% &'M())E'Disk formattingis the process of preparing a data storage device such as a harddiskdrive+ solid#state drive+ ,oppydiskor US- ,ash drive for initial use.Mukesh Das /Utility Programs( disk defragmenter reorgani0es the !les and unused space on a computer1s hard disk so that the operating system accesses data more 2uickly and programs run fasterDefragmentingMukesh Das3(nti#4irus Software(nti#virus softwarecontinually scans '(M+ storage devices+ and incoming !les for viruses and removes the viruses4iruses can "e of two types:-enignMalignantMukesh Das 53.3 ile Managementile 6ollection of informationMost of the information you work with is stored in !lesile management%eeps track of !les7elps you manage the !les on your computerMukesh Das 8ile 9aming 6onventionsFilename uni2ue name given to a !le of informationFilename extension further identi!es the contents of a !le "y specifying the !le type. Examples of extensions include::ord ; docExcel ; xls(ccess ; md"PowerPoint # pptMukesh Das