French bread, strictly speaking, belongs to a kind of European bread (European bread). But the French bread is characterized by a very distinctive, the recipe contains salt in the flour of about 2%, and generally no oil and sugar. On the other hand, French baguettes are protected by legislation.
Bread is a broad concept. Nowadays, it generally refers to the specialty breads of European countries, mainly the staple breads of European countries, such as French, German, Russian breads and so on. It, generally, is low in oil and sugar, and has a hard crust.
Old bread, this expression is actually the domestic, a production process for sweet bread produced by the bread commonly known. It is a sweet bread that is mainly fermented with old flour rather than directly fermented with fast-acting yeast. Therefore, the relative characteristics of the old bread is: soft, sweet.