Nanoscale Magnetic Storage: These involve the use of magnetic nanoparticles to store data. The magnetic properties of these particles are manipulated to represent binary data. Phase-Change Memory (PCM): PCM utilizes a special type of glass material that can switch between amorphous and crystalline states, representing binary 0s and 1s respectively. This is achieved by applying nanosecond pulses of electrical current. Resistive RAM (ReRAM): In ReRAM, a metal oxide layer is used, where the resistance can be changed at the nanoscale to store data. DNA Data Storage: This involves encoding digital information into the sequence of nucleotides in DNA strands. DNA is incredibly dense and stable, making it an attractive medium for long-term data storage.
