The document discusses different types of operating systems. It defines an operating system as software that allows computer hardware and software to communicate and function. It then describes GUI operating systems as using graphics and icons navigated by a mouse. It also covers multi-user systems that allow multiple users to access a computer simultaneously or at different times, as well as multiprocessing systems that support more than one processor, and multitasking and multithreading systems that run multiple processes concurrently. Finally, it mentions embedded systems designed for devices like PDAs with limited resources.

1. TYPES OF OPERATING SYSTEMS

2. Operating system An operating system, or OS, is a software program that enables the computer hardware to communicate and operate with the computer software. Without a computer operating system, a computer would be useless.

3. OPERATING SYSTEM TYPESGUI - Short for Graphical User Interface, a GUI Operating System contains graphics and icons and is commonly navigated by using a computer mouse.

4. OPERATING SYSTEM TYPESMulti-user - A multi-user operating system allows for multiple users to use the same computer at the same time and different times.

5. OPERATING SYSTEM TYPESMultiprocessing - An operating system capable of supporting and utilizing more than one computer processor.

6. OPERATING SYSTEM TYPESMultitasking - An operating system that is capable of allowing multiple software processes to run at the same time.

7. OPERATING SYSTEM TYPESMultithreading - Operating systems that allow different parts of a software program to run concurrently.

8. OPERATING SYSTEM TYPESEmbedded System: The operating systems designed to operate on small machines like PDAs with less autonomy. They are able to operate with a limited number of resources