1. Brandy is indeed wine, which is a highly alcoholic spirit obtained by distilling grapes after fermentation. Brandy is a distilled spirit, meaning "heated wine". For example, Cognac brandy is a delicious brandy produced in the Cognac region of France. Brandy can be made from a variety of fruits, but usually grapes.
2. Wine is fermented juice (usually grape juice) and brandy is distilled from wine and aged. Brandy has a higher ABV (usually 40% compared to 13-16% for table wine).