A problem of computer modelling of real nanomaterials is considered. A
n algorithmic approach based on nanomaterial classification and partic
ular properties of every classification mode, including recently obser
ved technological polymorphism, is suggested. The concept is put in pr
actice using the DYQUAMOD program system, based on semi-empirical quan
tum-chemical methods, which allows the study of structure and vibratio
nal spectra of nano-sized objects. The computing facilities are demons
trated by a few examples concerning some technologically important mat
erials.