Operating system

1. Features of operating system

1.1. File system

1.1.1. Storing

1.1.2. Sharing

1.1.3. Rename

1.1.4. Delete

2. Smartphone operating systems

2.1. Microsoft Windows

2.2. Android

2.3. Apple Iphone

2.4. Blackberry OS

3. Definition:

3.1. Operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

3.2. The operating system is a component of the system software in a computer system.

3.3. Application programs usually require an operating system to function.

4. Types of operating system

4.1. Proprietary

4.1.1. MAC

4.1.2. Windows

4.2. Open source

4.2.1. Linux

4.2.1.1. BOSS

4.2.1.2. Redhat

5. Basic functions of an OS:

5.1. Booting the computer

5.2. Performs basic computer tasks e.g. managing the various peripheral devices e.g. mouse, keyboard

5.3. Provides a user interface, e.g. command line, graphical user interface (GUI)

5.4. Handles system resources such as computer's memory and sharing of the central processing unit (CPU) time by various applications or peripheral devices

5.5. Provides file management which refers to the way that the operating system manipulates, stores, retrieves and saves data.

6. Most used