What is operating system? Explain different functions of OS.

Mumbai University > COMPS > Sem 5 > Operating System

Marks: 5 M

Year: Dec 2014


Operating System

  • An operating (sometimes abbreviated as "OS") system is a program that acts as an intermediate party between a user of a computer and the computer hardware.
  • An operating system is the program that, after being initially loaded into the computer by a boot program, manages all the other programs in a computer.

The functions of OS are:

  • Facilitate creation and modification of program and data files through an editor program
  • Provide access to compilers to translate programs from high-level languages to machine language
  • Provide a loader program to move the complied program code to the computer’s memory for execution,
  • Assure that when there are several active processes in the computer, each will get fair and non-interfering access to the central processing unit for execution (scheduling)
  • Provide routines that handle the intricate details of I/O programming
  • Take care of storage and device allocation
  • Provide for long term storage of user information in the form of files
  • Permit system resources to be shared among users when appropriate, and be protected from unauthorized or mischievous intervention as necessary.
  • Handle the booting process.
Please log in to add an answer.

Continue reading

Find answer to specific questions by searching them here. It's the best way to discover useful content.

Find more