1. Introduction to Operating Systems
Lesson 1
Introduction to Operating Systems

2. Lesson 1 – Introduction to Operating Systems
Objectives
Define the term “operating system.”
Explain the three different types of user interfaces.
Identify the common physical components of your computer.
Understand how the operating system handles resources.
Lesson 1 – Introduction to Operating Systems

3. Objectives (continued)
Understand how the operating system handles files.
Discuss the evolution of the microcomputer and operating systems.
Lesson 1 – Introduction to Operating Systems

4. What Is an Operating System?
It is a collection of system programs that allows the user to run program software to perform tasks.
The operating system manages hardware.
It provides resources to the programs that it manages.
Lesson 1 – Introduction to Operating Systems

5. The Three Types of User Interfaces
Command-line user interface
Menu-based user interface
Graphical user interface
Lesson 1 – Introduction to Operating Systems

6. Common Hardware Components
CPU
RAM
ROM
BIOS
Motherboard
Keyboard
Pointing Device
Lesson 1 – Introduction to Operating Systems

7. Classifications of Hardware
Input Devices
Keyboard
Pointing devices
Scanner
Voice devices
Output Devices
Monitor
Printer
Processing
Storage Types
Tapes
Disks
Hard disks
Lesson 1 – Introduction to Operating Systems

8. Basic Functionalities of the Operating System
Resource management
Memory management
File management
Lesson 1 – Introduction to Operating Systems

9. Lesson 1 – Introduction to Operating Systems
Resource Management
Booting the system
Shutting down the system
Multitasking
Lesson 1 – Introduction to Operating Systems

10. Lesson 1 – Introduction to Operating Systems
Memory Management
RAM
Virtual memory
Lesson 1 – Introduction to Operating Systems

11. Lesson 1 – Introduction to Operating Systems
File Management
Storage devices
Storage mediums
File types
Finding files
Copying and moving files
Deleting files
Lesson 1 – Introduction to Operating Systems

12. Evolution of Computers
Charles Babbage is considered to be the father of computing.
Mainframes
Minicomputers
Microcomputers
Lesson 1 – Introduction to Operating Systems

13. Lesson 1 – Introduction to Operating Systems
Windows 9x NT ME
2000 XP
MAC OSX
Linux
Novell
Lesson 1 – Introduction to Operating Systems

14. Lesson 1 – Introduction to Operating Systems
Summary
An operating system is a collection of system programs that allows the user to run program software. It manages hardware and other programs.
There are three basic types of user interfaces: command-line user interfaces, menu-based user interfaces, and graphical user interfaces (GUI).
All modern computers have the following components: CPU, RAM, ROM, BIOS, motherboard, and keyboard.
Lesson 1 – Introduction to Operating Systems

15. Lesson 1 – Introduction to Operating Systems
Summary (continued)
An operating system manages resources in many ways. Its main functions are starting up, shutting down, multitasking and allocating CPU cycles, and changing the way it works by using extensions and managing memory.
An operating system also manages files. Its main functions are utilizing the different storage devices available, recognizing and using the different file types, navigating and finding files, and copying and moving files as needed.
Lesson 1 – Introduction to Operating Systems

16. Lesson 1 – Introduction to Operating Systems
Summary (continued)
The evolution of the modern personal computer and its operating system has occurred over the past half-century and will continue into the future.
Lesson 1 – Introduction to Operating Systems