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2.7 SYSTEM SOFTWARE - Coggle Diagram

- - - - ANTI VIRUS PROGRAM
        
        antivirus program is a utility program that protects a computer against malware such as virus, worm and Trojan horse
        
        Kaspersky Antivirus
        
        Avira Antivirus
      - SPYWARE REMOVER
        
        -spyware remover is a utility program that detects and deletes spyware
        -spywareis a program placed on a compiuter without user's knowledge that secretly collects information about the users
        
        SpyHunter
        
        Spyware protection
      - COMPRESSION TOOLS
        
        compression tool is a utility program that shrinks the size of files
        
        Winzip
        
        WinRaR
      - DISK DEFRAGMENTER
        
        disk defragmenter is a utility program that recognizes files and unused space on a hard disk so that OS access data more quickly and program runs faster
        
        Wincontig
        
        My Defrog
      - DISK CLEAN UP
        
        disk cleanup is a utility program that searches for and removes unnecessary files
        
        Windows Disk Cleanup
        
        CCleaner
      - ADWARE REMOVER
        
        -adware remover is a utility program that detects and deletes adware
        -adware is a software that displays unwantd ads when user is online, collects marketing data and other information without the user's knowledge
        
        Adwarener
        
        Bitdefender
      - FILE MANAGER
        
        a file manager is utility that perform functuins related to file management
        
        File Explorer
        
        Finder
      - BACK UP&RESTORE UTILITY
        
        BACK UP-allow users to copy selected files or the entire hard disk to another sttorage medium
        RESTORE-restore data from a backup to the original storage location or to a replacement device
        
        IDrive
        
        iCloud backup
  - - - SERVER OPERATING SYSTEM: a multiuser operating system that organizes and coordinates how multiple users access and share resources on a network.
        
        ex: PSOS(Windows Server,macOS)
        
        ex;OSSOS(Ubuntu,Linux)
      - MOBILE OPERATING SYSTEM: an operating system that resides on a mobile devices such as smartphones
        
        ex:PMOS(iOS, Windows)
        
        ex:OSMOS(Android,Tizen)
      - DESKTOP OPERATING SYSTEM: a complete operating system that works on a desktops laptops or some tablets
        
        ex: PDOS(Windows,macOS)
        
        ex; OSDOS(Chrome OS,Linux)
    - - manage memory
      - control a network
      - manage Programs
      - establish an internet connection
      - provide a user interface
      - providing file,disk and system management tools
      - starting and shutting down the computers
      - monitor performance