Hack architecture question

Answer fully for thumbs up

Question 3 The Hack architecture is primitive and is missing many developments in hardware design that have (a) Name three features that you might find in a modern processor that the Hack architecture does not implement. (b) Select one of the features you named in part (a) of this question. What effect does the feature have on the hardware? How does the feature work? How might you adapt the Hack platform to integrate this feature