Q17. The operating system is called a resource manager. List four distinct resources of the computer system. What are the general functions that the OS performs for these resources?
- Input/output devices
The general functions that OS performs are:
For memory it should be effectively used and allocated to the programs asking for it. There should not be any idle memory and a waiting program at the same time.
For CPU – it should be allocated to the job(s) waiting for it so as to minimize its idle time, increase system’s efficiency and meet job’s deadline if any.
For I/O devices – proper device management that is, allocation of I/O channel and device to a job asking for it, in minimum wait time and ensure user free environment.
For PROGRAMS and DATA – proper storage for them. Ensure their protection and avoid any illegal use of them.