Difference between Cement Mortar and Concrete?

Well, the difference between cement mortar and concrete is only that of  Coarse aggregate(CA).
Because if u see the composition of Mortar and Concrete.
Composition of Mortar:
Mortar is the mixture of following.

1. Cement
2. Sand/Fine aggregate(FA)
3. Water.

Composition of Concrete:
Concrete is the mixture of following.

1. Cement
2. Fine aggregate(FA)
3. Coarse aggregate(CA)
4. Water