  This article presents a review on the main applications of the fourth
fundamental circuit element, named "memristor", which had been proposed for the
first time by Leon Chua and has recently been developed by a team at HP
Laboratories led by Stanley Williams. In particular, after a brief analysis of
memristor theory with a description of the first memristor, manufactured at HP
Laboratories, we present its main applications in the circuit design and
computer technology, together with future developments.
