UNDERSTANDING

SOFTWARE

PREPARED BY: T. ROSELYN D.C. VILLANUEVA

Graphical User Interface (GUI)

Text-based operating system

GUI-based operating system

Microsoft(R) MS-DOS(C)Copyright Microsoft Corp

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Graphical User Interface (GUI)

- Makes computers easier to operate by using pictures and icons to represent files and programs.

What is SOFTWARE?

SOFTWARE

- A computer program that tells computer hardware how to operate.

What is anOPERATINGSYSTEM?

- A software program that loads automatically and controls just about everything on your computer.

OPERATING SYSTEM

What is anAPPLICATIONPROGRAM?

APPLICATION PROGRAM

- Helps you accomplish a certain task, such as writing a letter, browsing the Internet, or playing a game.

Why are new versions of

SOFTWARE released year after

year?

New version of software…comes out periodically toadd new features to aprogram…and make itsmanufacturers moremoney.

How does an OPERATING SYSTEM

works?

Controls Your Computer’s Hardware

Runs Your Computer’s Programs

Organizes Files

Here’s what an OS does:

TYPES OF

OPERATING SYSTEMS

MS-DOS

Windows 3.1

Empty Desktop

Desktop with Application

Calculator and Calendar

Multimedia Application

Setting Menu

Application Manager

File Manager

System Features

Dialog Box

Windows 95

Empty Desktop

Desktop with Application

Calculator

Multimedia Application

Settings Menu

Application and File Manager

System Features

System Utilities

Windows 98

Empty Desktop

Windows ME

Empty Desktop

Windows NT

Empty Desktop

Windows 2000

Windows XP Home

Windows XP Professional

Mac OS X