Time Sharing - 2
Time Sharing - 2
- Leads to concept of Resources.
- A resource is a capacity (attention) that can be allocated to a task.
- A resource can be allocated in any manner seen fit.
- Performance is resource limited, if performance can be improved by increasing attention. Norman and Bobrow, 1975.
- Think of what happens when traffic gets heavy.
- There may be more than one type of resource for different types of task. Navon and Gopher, 1979.
- Thus, dual task performance will increase if do not compete for same resources.
Notes:
Performance may not be limited by skill, but by resources being used.