  In this report we consider the numerical simulations at finite temperature
using lattice QCD data for the computation of the thermodynamical quantities
including the pressure, energy density and the entropy density. These physical
quantities can be related to the equation of state for quarks and gluons. We
shall apply the lattice data to the evaluation of the specific structure of the
gluon and quark condensates at finite temperature in relation to the
deconfinement and chiral phase transitions. Finally we mention the quantum
nature of the phases at lower temperatures.
