system software

system software

1. software

   • application software
     • it perform a particular task
   • system software(operating systems)
     • it controls the running of hardware and running of other software

2. operating system

   • software that controls the operation of the system's hardware and the running of other software
   • use
     • manage and control of all the computer's resourse
       • memory
       • processors
       • hard drives
       • I/O device
     • handle application software that users run
       • security
       • file management
     • provide the link between the hardware and software
   • functions
     • memory management
       • control system's RAM
       • operate system handles the computer's memory
       • maximising the whole system
       • control the location of memory
     • file management
       • controls where and how files are saved onto backing storage
       • allow user to rename, copy,move and delete files
       • keeps track of where files are located
     • security
       • controls the access of programs, processes
       • provides authentication features for each user by means of password
       • ensures all access to system resources is controlled
     • provision of an interface
       • it is the mean of interfacing with user
     • input/output
     • error reporting
     • utility software managemant