1. INTRODUCTION OF SYSTEM & APPLICATION SOFTWARE

2. OPERATING SYSTEM (OS) 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. OS

4. SYSTEM SOFTWARE - OS  Controls computer functions Hardware Processor Memory Devices  Provides means for software to work with the CPU  Responsible for management, scheduling, and interaction of tasks  Provides user interface

5. TYPES OF OPERATING SYSTEM »Graphical User Interface (GUI) »Multi-user »Multiprocessing »Multitasking

6.  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.

7.  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.

8. THE OS FUNCTIONS  Provides a user interface  Manages the CPU  Manages memory and storage  Manages hardware and secondary devices  Coordinates application software with the CPU

9. APPLICATION SOFTWARE  Application software helps users solve particular problems  In most cases, application software resides on the computer’s hard disk  Application software can also be stored on CDs, DVDs, and flash or keychain storage devices

10. Systems VS Application Software

11. PERSONAL APPLICATION SOFTWARE  Serves the needs of an individual user  Includes personal productivity software  Enables users to improve their personal effectiveness

13. D ATABASE M ANAGEMENT Data is a vital part of any organization. It needs to be stored, organized, managed, accessed, protected and manipulated. Operational Use databases to: Create a book Track book sales Set salaries and wages Pay employees

14. Uses  Keep track of a large number of related facts  Query the data for specific information  Retrieve information in a variety of ways Functions  Store data  Update data  Manipulate data  Retrieve data  Print data in many forms  Report on data in a variety of ways