A team of researchers from the National University of Singapore (NUS) and Saudi Arabia's King Abdullah University of Science and Technology (KAUST) has now developed a new type of MRAM that could see Åkerman's vision become a reality.
Currently, many devices pack static random access memory (SRAM), dynamic random access memory (DRAM), and Flash memory, with each offering their own particular advantages. SRAM is fast but volatile, meaning the data it stores is lost when the power is switched off. DRAM offers greater memory densities than SRAM and is cheaper, but is also volatile and needs to be refreshed periodically to retain information, making it more power hungry. Finally, Flash memory is non-volatile, meaning it retains data even when the power is switched off, but is still relatively expensive.
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