The document explains the functionality of a computer when powered on, emphasizing the role of software in executing various tasks like office work, art creation, and gaming. It differentiates between system software (operating systems and utility programs) and application software, detailing examples such as Microsoft Office and other popular applications. Additionally, it briefly touches on the roles of programmers and the concept of a graphical user interface (GUI) for software interaction.

1. What happens when your PC is
powered on?
With a simple push of a button, your computer comes to life.

2. Everyone wants to use the power of their computer in different ways:
• Office work
• To create works of art
• Create music
• Play games
• Surf the web
• Trade on stock market….
Whatever you want to do with your computer, software is the key to doing it.
Computer Software

3. Computer Software
• What is system software?
Operating System (OS)Operating System (OS)
is a set of programs
that coordinates all
activities among
computer hardware
devices and allows
users to run
application software
Operating System (OS)Operating System (OS)
is a set of programs
that coordinates all
activities among
computer hardware
devices and allows
users to run
application software
Utility ProgramsUtility Programs allow the user to
perform maintenance-type tasks
usually related to managing a
computer, its devices or its programs
Utility ProgramsUtility Programs allow the user to
perform maintenance-type tasks
usually related to managing a
computer, its devices or its programs
 Programs (set of instructions) also called as logic circuitry,
controls the operations of the computer and its devices.
Computer Software are programs that tell the computer what
to do

4. OPERATING SYSTEMS
• MS-DOS
• Windows
• MAC
• Linux

5. Computer Software
• What is application software?
Presentation
Graphics
Spreadsheet
Database
Word
Processing
 Programs that perform specific tasks for users
 Office Suite
Popular software applications
bundled together as a single unit

6. Microsoft Office is one of the most popular
software suites available for business,
educational, and personal computer use.
• Word processor
• Database program
• Spreadsheet
• Presentation software
• Information management
Software suites are full- featured
versions of several different
programs packaged together.
Software Suites

7. APPLICATIONS
• MS Word
• (Your basic Word Processor)

8. APPLICATIONS
• MS Excel
• Your basic Spread Sheet)

9. APPLICATIONS
• MS Power Point

10. APPLICATIONS
• MS Outlook

11. APPLICATIONS
• Internet Explorer
• Google Chrome

12. APPLICATIONS
• Windows Calculator
• (Your basic calculator,
also available is a
scientific calculator)

13. APPLICATIONS
• WordPerfect Adobe Acrobat
• Photoshop Skype
• QuickBooks Notepad
• CorelDraw WinZip
• Camera Media Player
• Photo Paint
• Ad Infinitum

14. Computer Software
• Who is a programmer?
 Someone who develops
application or system software
 Programmer writes instructions to
direct computer to process data
into information

15. Computer Software
• What is a graphical user interface (GUI)?
 Allows you to interact with the software using
graphics, indicators and icons
 Controls how you enter data and how the screen
displays information

16. Computer Software
• How do you install and run a software program?
Step 1.
Insert the program disc
into the CD-ROM
drive
Step 2. Install the
software program by
instruction in the disc,
then run the program
Step 3.
The program executes
 A program is a series of instructions that tells the
computer what to do

17. Computer DATA
- raw facts, figures, information
• Letters written using a word processor like MS
WORD.
• Spread sheets designed in EXCEL.
• Presentations created in Power Point
• Music on a CD.
• Photos from your digital camera

18. Thank You