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Software System Software System UtilitiesUtilities

Jackson Doughty, Nyan Min, and Seth Jackson Doughty, Nyan Min, and Seth WillisWillis

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Defragmentation/Defragmentation/Optimization Optimization

A computer that is poorly organized can A computer that is poorly organized can cause it to run slower because it takes cause it to run slower because it takes more time to locate files more time to locate files 

Contrast with application software Contrast with application software 

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Disk Utility Disk Utility SoftwareSoftware

Utility software is used to maintain the Utility software is used to maintain the infrastructure of the computer by means infrastructure of the computer by means of anti-virus, backup, data compression, of anti-virus, backup, data compression, disc cleaners etc. disc cleaners etc. 

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BackupBackupUse of the computer compressing Use of the computer compressing duplicate files in case something goes duplicate files in case something goes wrong such as your hard drive crashes wrong such as your hard drive crashes 

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File ManagementFile ManagementFile management is the categorization of File management is the categorization of files through menus/folders so that it is files through menus/folders so that it is easiest for an application to find ex. easiest for an application to find ex. iTunes has folders of each song iTunes has folders of each song categorized so that it can open quickly categorized so that it can open quickly with all info. presented nicely with all info. presented nicely 

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Account & Account & Accessibility Accessibility ManagementManagement

Account and accessibility management is Account and accessibility management is the use of a password and username ex. the use of a password and username ex. account log in to a computer to access account log in to a computer to access files files 

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Monitor & Monitor & Keyboard SettingsKeyboard Settings

Keyboards often have keys for Keyboards often have keys for applications, or windows as an item's applications, or windows as an item's shortcut shortcut 

Shortcuts can be made that can quicken Shortcuts can be made that can quicken the ease with which users can access the ease with which users can access content  content  

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Virus ScanVirus ScanAn anti-virus is a  program that protects An anti-virus is a  program that protects a computer against viruses by a computer against viruses by identifying and removing any computer identifying and removing any computer viruses that are found viruses that are found 

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Malware Malware Detectors & Detectors & RemoversRemoversA spy-ware remover is a program that A spy-ware remover is a program that

detects and deletes spyware and other detects and deletes spyware and other similar programs.  similar programs.  

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CompressionCompressionProcess of encoding information using Process of encoding information using fewer bits than the original representationfewer bits than the original representation

Also called bit-rate reduction and source Also called bit-rate reduction and source codingcoding

Lossy: data is lost during compressionLossy: data is lost during compressionMultimedia (images, video, audio)Multimedia (images, video, audio)

Lossless: original data is retainedLossless: original data is retainedText filesText files

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Lossy Lossy CompressionCompression

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DecompressionDecompressionReversion of compressed dataReversion of compressed data

Lossless data will be decompressed to Lossless data will be decompressed to its original formits original form

Lossy data will be decompressed to its Lossy data will be decompressed to its near-original formnear-original form

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Color Color SynchronizationSynchronization

Goal is to get colors to look the exact Goal is to get colors to look the exact same on every monitorsame on every monitor

Prevalent in web pagesPrevalent in web pages

Nearly impossible because of the Nearly impossible because of the different factors (monitor, web browser, different factors (monitor, web browser, surrounding light, OS)surrounding light, OS)