Operating system

An operating system is a collection of software that manages computer hardware resources and provides common services for computer programs. Popular examples of operating systems include Windows 7, OS X, Linux, Unix, Android and iOS. Operating systems are a vital component in a computer.

Real-Time Operating System
Main Article: Real-time operating system

A real-time operating system is a multitasking operating system in which the primary goal is to execute real time applications.

Embedded Operating System
Main Article: Embedded system

Embedded operating systems are designed to be used in embedded compurwe systems.