  Starting from a quantization relation for primordial extremal black holes
with electric and magnetic charges, it is shown that their entropy is
quantized. Furthermore the energy levels spacing for such black holes is
derived as a function of the level number $n$, appearing in the quantization
relation. Some interesting cosmological consequences are presented for small
values of $n$. By producing a mismatch between the mass and the charge the
black hole temperature is derived and its behavior investigated. Finally
extending the quantum relation to Schwarzschild black holes their temperature
is found to be in agreement with the Hawking temperature and a simple
interpretation of the microscopic degrees of freedom of the black holes is
given.
