... user to select and lunch programs. * Loads programs by transferring them from storage into main memory. * Manage input and output devices by controlling the data that flows between them and the processor. For example, the operating system deals with data as it is input from other devices, such as floppy disk drives. Data from a disk file must be stored in the current memory (RAM) of the computer until it is ready to be dealt with by the program currently in use * Manage the backing store by creating .opening, moving, deleting files. * Allows the user to configure the system. * Run programs by transferring instruction one at a time from memory to the processor. * Make some space in memory to programs, which mean keeping track of which parts of the memory have already been allocated and the parts that are still free * It manages system security, which involves monitoring and restricting ...

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