1.  First, we have very sophisticated computers.

2.  And some sports medicine and training centers have very sophisticated computers that can monitor the movement of athletes in training exercises.

3.  Artists are becoming technicians again as they were in Renaissance days, he said, because they must learn to write software and operate the more sophisticated computers.

4.  The air has gotten cleaner even as the number of cars has skyrocketed, partly because new autos have sophisticated computers that monitor engine functions.