SS3 Second Term Computer Studies Lesson Note – Graphics

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WEEK TWO                                                                        

TOPIC:  GRAPHICS (Introduction to Corel Draw)

CONTENT:

• Definition of Graphics
• Examples of Graphic Packages
• Simple designs

SUBTOPIC 1: DEFINITION AND EXAMPLES OF GRAPHICS PACKAGES

Graphics are visual presentations on some surface, such as a wall, canvas, computer screen, paper, or stone; to brand, inform, illustrate, or entertain. Graphics often combine text, illustration, and colour.

Therefore, computer graphics are simply images displayed on a computer screen. More generally, Graphics involves the representation and manipulation of images by a computer using specialized software and hardware adapted devices. They are often contrasted with text, which is comprised of characters, such as numbers and letters, rather than images.

There are two types of computer graphics:

Raster Graphics, where each pixel is separately defined (as in a digital photograph), and

Vector Graphics, where mathematical formulas are used to draw lines and shapes, which are then interpreted at the viewer’s end to produce the graphic.

EXAMPLES OF GRAPHICS PACKAGES

There are many computer graphics software packages available, giving an abundance of options for graphic artists to choose from. Some examples include the following:

• Microsoft Paint
• Harvard Graphics
• Adobe Photoshop
• CorelDraw
• Print Master
• Adobe Page Maker
• Photoshop Pro
• Ventura

Features of Corel Draw

• Title Bar
• Menu Bar
• Rulers
• The Scroll Bars
• Drawing Window
• Roll-up windows
• Dockers
• Status Bar

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