I don't think comparing it to someone saying "my body hurts" is a good analogy. I think that it would be more appropriate to say that in the case, she knew her body hurt (computer). She knew what part of the body hurt (web browser, PowerPoint). She just didn't know how to identify the problem.
In this case, it would be comparable to your doctor asking you if it were your C3 or C4 vertebrae that was sore and you saying, "I don't know where that is." .. People with a good understanding of human anatomy know the answer; your average layperson probably does not.
Guy walks into doctor's office, says his body hurts. Doc asks where it hurts, guy taps his forehead and says that that hurts. Doc asks if anywhere else hurts, guy taps knee and says that too hurts. Doc asks if there are any other symptoms, guy pokes at this other arm, says that that hurts.
In this case, it would be comparable to your doctor asking you if it were your C3 or C4 vertebrae that was sore and you saying, "I don't know where that is." .. People with a good understanding of human anatomy know the answer; your average layperson probably does not.