Unit 30 Digital Graphics

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Unit 30 Digital Graphics
Assignment 1 – Hardware and Software

IT BTEC Level 3
Adam Feist – 6857
The College of Richard Collyer (65131)
2015-2016

CONTENTS
Task 1 - the hardware and software used to create and edit graphic images (P1/M1) 1
Hardware 1
Hard Drive 1
Graphics Card 1
RAM 2
Processor 2
Flash Storage 2
Digital Camera 3
Graphics Table 3
Inkjet Printer 4
Monitor 4
Plotter. 5
Software 5
Vector Graphics Software (Illustrator, Fireworks) 5
Photo Editing Software (Photoshop) 5
Bitmap Creating Software (MS Paint) 6
Image Organising Software (Picasa, Gimp) 6
Task 2 – how different types of graphic images relate to file formats (P2) 7
The difference between Vector and Bitmap (Raster) Graphics 7
The Difference between Lossless and …show more content…
The Difference between Lossless and Lossy Compression Techniques

Add images to illustrate your explanations.

Different Types of Graphic File Formats

Format Typical Use
Bitmap/Vector Features Limitations
JPEG

Taking a photograph which saves it as a bitmap • Very small file size making them very useful for using on the internet
• JPEG’s are supported by a large range of software
• It has the capability of using 16.7 million different colours, meaning that you can have images that are high detail. • It uses lossy compression meaning that some data is lost when compressing the file.
• It does not support transparency, which may be needed when making a logo meaning that this file type will not be able to be used.
• The files loses its quality after repeat saves of the file.

BMP

High quality photo editing / images • Lossless compressions meaning that when you compress the image no data is lost from the image.
• It has support for over 4 billion colours • The file size is very large making it difficult to use when on the internet due to file size restrictions, and loading times of a webpage using a BMP file is quite large

Level 3: Unit 30: Digital Graphic Images

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