1. Operating systems

2. An operating system (OS) is software that manages computer hardware and software resources and provides common services for computer programs. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function
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3. Types of operating systems
As computers have progressed and developed, so have the operating systems. Below is a basic list of the types of operating systems and a few examples of operating systems that fall into each of the types. Many computer operating systems will fall into more than one of the below types.
GUI - Short for Graphical User Interface, a GUI Operating System contains graphics and icons and is commonly navigated by using a computer mouse. Multi-user - A multi-user operating system allows for multiple users to use the same computer at the same time and different times.
Multiprocessing - An operating system capable of supporting and utilizing more than one computer processor.
Multitasking - An operating system that is capable of allowing multiple software processes to run at the same time.
Multithreading - Operating systems that allow different parts of a software program to run concurrently.
Types of operating systems

4. Examples of Operating systems
Popular operating systems include
Windows-The most popular operating system, which all windows computers run.
OS X-the operating system for Mac computers
Linux-the most famous example of free and open source software
Android-A mobile OS primarily designed for touch screen input.
IOS- On all mobile apple products. Also touch screen oriented. A major competitor with android products.
Examples of Operating systems

5. This presentation was made on a program run in the Windows operating system.
My device, however, runs on IOS.
Did you know that 97% of supercomputers run on linux?
Facts