CAD workstations:

create computer$-$generated simulations that are so close to reality that users almost believe they are participating in a real$-$world situation.

are an example of an expert system.

provide users with additional information to enhance their perception of reality.

are high$-$end PCs used in the financial sector to analyze trading situations instantaneously and facilitate portfolio management.

enables design specifications for tooling and manufacturing processes to be easily tested and changed.