Question

Write any four functions of the operating system.

Answer 1

Here are four common functions of an operating system, with brief explanations:

• Process management: creates, schedules, dispatches, suspends/resumes and terminates processes so multiple programs can run (and appear to run) concurrently.
• Memory management: keeps track of and allocates/deallocates main memory for processes, handles virtual memory and protects one process’s memory from another.
• File (information) management: provides services to create, open, read, write, move and delete files and directories, and manages storage allocation and access rights.
• Device/I/O management: controls and coordinates input/output devices (drivers, buffering, spooling), and moves data between devices and processes.