Figure 10.1 shows what happens to the main screen when the computation has completed: a blue letter S appears to the left of the Compute button, which indicates that this Sound box now has a sound file attached to it. You can generate sounds for any kind of box except Interval boxes.
To save a possibly lengthy computation on a large component — for example, a Sequence box containing many complex instruments — it is often a good idea to try computing smaller parts of it first and only computing the large component when you are satisfied with how the smaller components sound when played individually.