
Higher CS - Data rep (Graphics)
Presentation
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Computers
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9th - 12th Grade
•
Practice Problem
•
Easy
G Alexander-Doyle
Used 6+ times
FREE Resource
18 Slides • 4 Questions
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Aims
We are learning about the advantages and disadvantages of using bit-mapped and vector graphics
Achievements (theory)
I can describe the advantages and disadvantages of bit-mapped graphics
I can describe the advantages and disadvantages of vector graphics
3
Open Ended
N5 revision - How are bitmap graphics represented on a computer system? (2 marks)
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Match
Match the following terms relating to bit-mapped graphics.
The total number of pixels in a bitmap graphic.
The smallest element of a bit-map graphic
The number of bits used to represent the colour of a pixel
This is when a bitmap graphic has its size changed and becomes jagged/blurry
This is when a bitmap graphic is made smaller or larger
Resolution
Pixel
Bit depth
Pixelation
Scaled
Resolution
Pixel
Bit depth
Pixelation
Scaled
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Dropdown
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Categorize
Graphic can become pixelated when it is scaled.
Large file size
File size increases with increasing complexity
Cannot be edited at pixel-level
Layering is supported
Resolution independant
Small file size
Images can be edited at pixel level
File size remains the same even with increasing complexity
21
22
Aims
We are learning about the advantages and disadvantages of using bit-mapped and vector graphics
Achievements (theory)
I can describe the advantages and disadvantages of bit-mapped graphics
I can describe the advantages and disadvantages of vector graphics
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