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6. 

What is proportional control?
A. It has a discrete output for each error value
B. The controller output varies continuously over a range
C. The gain is independent of offset error.
D. All of the above
E. None of the above
7. 

The real "brain" of an artificial intelligence system is referred to as:
A. bubble memory
B. the expert system
C. recursive technology
D. natural language interfaces
E. None of the above
8. 

Analog and digital controllers:
A. cost the same to build
B. accept the same input signals
C. can be changed with equal case
D. All of the above
E. None of the above
9. 

Robot motion:
A. is the same for all robots
B. usually imitates human motion
C. is not dependent on the robot structure
D. All of the above
E. None of the above
10. 

The digitizing technology that uses an electric field radiated from the tablet and picked up by a cursor is:
A. electromagnetic
B. raster
C. sonic
D. electrostic
E. None of the above