Phantasy and reality-teleportation versus quantum computing

Application of quantum theory in informatics and the creation of quantum information devices have revolutionary changed our idea about the information systems. It seems to us that the only question is that quantum computers will be introduced in the next decade or in some years later. Anyhow, we should prepare to teach a radically new paradigm, the quantum algorithms, in informatics. Quantum algorithm can be demonstrated with quantum simulators. The present paper shows an educational material, which facilitates the teaching of this new field. Besides summarising the basic concepts and methods of quantum informatics, the working of a quantum algorithm on a quantum simulator will be also illustrated with the discussion of an exciting quantum physical phenomenon (the teleportation). (paper)