| 1. |
A
picture is drawn in a bitmapped package. It was drawn at a resolution
of 72 dpi and colour depth of 256 (8-bit) colours. |
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(a) What is
meant by the term resolution when talking about computer graphics? |
(1) |
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(b) What is
meant by the terms colour depth when talking about computer graphics? |
(1) |
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(c) Would
the amount of memory needed to store the picture, increase or
decrease if:
(i) the
resolution was increased to 300 dpi?
(ii) the colour depth was decreased to 2 (1-bit) colour?
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(2) |
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(d) What
would happen to the picture clarity if:
(i) the
resolution was increased to 300 dpi?
(ii) the colour depth was decreased to 2 (1-bit) colour?
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(2) |
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| 2.
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Both bitmapped
and vector drawn packages can scale, rotate and flip graphics. |
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(a) Name one
technique that can be used with a vector drawn package but not bitmapped. |
(1) |
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(b) Name one
technique used with a bitmapped package but not vector drawn. |
(1) |
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| 3. |
For your multimedia
presentation, you would like a picture of a tree. |
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(a) What is
the difference between creating the picture and capturing the picture? |
(1) |
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(b) Describe
three different ways you could capture the picture of the tree,
without creating it yourself. |
(3) |
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| 4. |
A professionally
created animation cartoon uses 24 frames per second. If a cartoon
lasts 8 minutes 30 seconds, how many frames will need to be created.
Show all your working. |
(2) |
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Total |
(14) |
