The second is the fresh red, white and black Currants that are in fact berries.
The following applies to the dried fruit type of currants:
1 cup = 6 oz = 175g
2 3/4 cups = 1 pound = 450g
3 tablespoons = 1 oz = 30g
Currants (the raisin kind) traditionally came from Corinth, Greece which shipped small raisins (dried grapes) throughout Europe.
The word “currant” is a corruption of “Corinth”.
Since the berries are about the same size as the raisins, the name currant was applied to them as well starting around the mid 1500s.