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Software (Applications (Utility programs (Ex: Virus Scanners), Generic…

- - - - Multi-programing
        
        A method of operating such that several programs appear to be running at once.
      - Batch processing
        
        Programs or data are collected together in a batch and processed in one go. Process and outputs where no human intervention is needed
      - Interactive processing
        
        The tasks on the computer system require a continual exchange of information between the user and the computer system
      - Multi-tasking
        
        Allows multiple tasks to run concurrently, taking turns using the resources of the computer
      - Multi-access
        
        One where several users can use the same system together via a LAN
    - - 1-Controls the backing store and peripherals such as printers
      - 2-Organises the use of memory between programs.
      - 3- Organises processing time between programs and users
      - 4-Maintains security and access rights of users
      - 5-Deals with the transfer of programs in and out of memory.
  - - - Allows the user to interact with the computer by typing in commands.
        
        Features
        
        Commands must be typed correctly and in the right order or the command will not work.
    - - Simple menu
        
        The user is offered a simple menu from which to choose an option. One menu often leads to a further menu.
      - Full screen menu
        
        A full screen menu takes up the entire screen
      - Menu bar
        
        A menu bar is the set of options at the top of the screen. When an option is chosen a drop-down menu may be offered.
  - - - similar to human language
    - - runs very fast.Shown in 0s and 1s