CHAPTER 9 : OPERATING SYSTEM

Operating system is a set of programs containing instructions that work together to coordinate all the activities among computer and mobile device hardware

-Start and shut down a computer or mobile device
-Provide user interface
-Manage programs
-Manage memory
-Coordinate tasks
-Configure devices
-Establish an internet connection
-Monitor performance
-Provide file management and other device or media-related tasks
-Updating operating system software
-Control a network
-Administer security

· TYPES OF OPERATING SYSTEM

· Desktop operating system is a complete os that works on desktops, laptops and some tablets

· The operating system on mobile devices and many consumer electronics is called a mobile operating system and resides on firmware