Recall the analogies in questions 3 and 4 above: shakespeare: plays : : screen: computer : : in 2-5 sentences, explain whether each item in the two analogies (shakespeare/plays, screen/computer) is concrete or abstract. how do you know?

These so called word analogies or verbal analogies are available in lot of different types. In the examples given below the first one  Shakespeare/plays, it is classified as performer and action analogy. The second one screen/computer corresponds to the type of an object and part of the whole Analogy.

Both are concrete analogies. Concrete analogies tend to be used to illustrate abstract concepts.

boccaccio employs the voice of his narrator dioneo to represent his ideas on the tension between masculinity and femininity.  while dioneo excites the members of the brigata and recognizes women for their unique skills and independent ideas, he concludes the decameron with a story reminiscent of the society from which these young aristocrats escaped, revealing misogynistic overtones.  dioneo boccaccio is able to explore the gender disparity which is inherent in 14th century florentine society.