During the several decades, considerable theoretical development taken place in the field of disordered condensed matter physics. The few examples of this system are crystals with impurities, liquid metals, binary alloys, metallic glasses, etc. The disordered materials are also known as non-crystalline materials. Looking to the simplicity and various advantages of the pseudopotential theory, the main aim of the present book is to carry out the theoretical investigation of vibrational dynamics of binary metallic glasses