1. a) With respect to the use of color in user interface design, describe what is meant by: i) Contrast. ii) Color pollution. iii) The Stroop effect.
2. b) Describe three uses where color has been shown to be helpful in user interfaces.
3. c) In the context of Graphical User Interfaces (GUIs): Describe what is meant by the term icon and why icons are used. Give three distinct examples of GUI icons.
4. d) Describe what metaphors are and why they are used. Give three distinct examples of GUI metaphors.
5. e) In the context of human memory limitations and human computer interaction, describe what is meant by the “memory bottleneck” and explain how this occurs.
6. f) Discuss what could be done to overcome the “memory bottleneck” problem

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