Electronic Devices 1. Based on the properties of charge of the electron 2. Classical property 4. Materials: conductors and semiconductors 5. Based on the number of charges and their energy 6. Speed is limited, and power dissipation is high. Spintronics devices 1. Based on intrinsic property spin of the electron. 2. Quantum property 4. Materials: ferromagnetic materials 5. Two basic spin states; spin-up and spin-down. 6. Based on the direction of spin and spin coupling, high s