The presentation defined operating systems and discussed their types and user interfaces. It explained that an operating system manages the computer and allows users to interact with it through a user interface. There are two main types of user interfaces: graphical user interfaces (GUI) like Windows and Mac OS which use icons and windows, and command line interfaces (CLI) which are text-based and require users to type commands. The presentation also covered single-user single-task and multi-user multi-task operating systems.

1. Presentation on operating
system
presented by

2. Content of the presentation
Definition of OS
Function of OS
Types of OS
User interface
Types of user interface

7. Single-user,, single task
 1. Single-user,, single task
This type manages the
computer so that one
user can effectively do
one thing at a time.

10. Multi user multi task
 Multii--user, multi—task
Allows two or more users
to run programs at the same
time. Some operating systems
permit hundreds or
even thousands of
concurrent users.

11. User interface
 The system that people use to interact with a computer (to
give it commands, to see the results of those commands, etc.)
is known as the user interface.
 Enable you to interact with the computer
Types of interface
A---- Command line interface
B----- Graphical user interface {GUI}

12. Graphical User Interface
 the graphical interface of a computer that allows users
to click and drag objects with a mouse instead of
entering text at a command line.
 A few examples of a GUI
 Microsoft Windows
 Apple System 7 and Mac OS X

13. Graphical User Interface

14. Command Line Interface (CLI)
 Command Line Interface (CLI) mean?
 Command line interface (CLI) is a text-based interface that is
used to operate software and operating systems while
allowing the user to respond to visual prompts by typing
single commands into the interface and receiving a reply in
the same way.

15. Command line user interface

16. thanks for your attention
presented by
Niaz sahil
Paktia university Afghanistan