operating systems

operating systems

1. windows and apple are operating systems

2. An operating system is a system program that controls and organises the general operation of the computer.

3. Operating system functions

   • controls the backing store and peripherals such as scanners and printers
   • deals with the transfer of programs in and out of memory
   • organises the use of memory between programs
   • organises processing time between programs and users
   • maintains security and access rights of users
   • deals with errors and user instructions
   • allows the user to save files to a backing store
   • provides the interface between the user and the computer - for example, Windows Vista and Apple OSX.
   • issues simple error messages

4. G.U.I graphical user interface