Lucas123 writes: In what is likely to be a strong rival to NAND flash memory, IBM today announced it has been able to successfully store more than one bit of data per cell in a more stable non-volatile memory called phase-change memory (PCM). Unlike NAND, Previously, PCM couldn't contend with flash because of its low capacity points. PCM does not require that data be erased before new data is written to it, which reduces a write amplification or wear out and it has 100 times the write performance of flash. IBM researchers say they plan to license the technology to memory manufacturers instead of producing it themselves.
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