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1. A Collection of programs that manages the hardware and software of a computer system including sharing computers times memory, hardware and other resources

2. File managment

   • creates a file system to organise files and directories a hierarchy of directories

3. hardware management

   • Manages memory- transfers programs into and out of memory and allocates free space between programs and keeps track of memory usage
     • opens and closes and writes to peripheral devices such as storage attached to the computer

4. Drivers are software that allows us to use the actual hardware componets

5. The Os on most computers and smart phones provide an environment with titles icons and menus . This type of interface is called the graphical user interface because the useinteracts with images through a mouse keyboard or touchscreen

6. An OS also provides a method of interaction that is non-graphical, called the command line interface (CLI). This is a text-only service with feedback from the OS appearing in text. Using a CLI requires knowledge of the commands available on a particular machine.

7. utilities

Images and files in the map