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Line 12: * [[Disk storage]] – hundreds of thousands of cycles latency, but very large ==Management == Modern [[programming ~~lanaguage~~language]]s are mainly assuming two levels of memory: main memory and disk storage, tough directly accessing registers are allowable in rare cases. Programmers are responsible for moving data between disk and memory through file I/O. Hardware is in charge of moving data between memory and caches. Compilers are trying to optimize the usage of caches and registers. ==See also==

Memory hierarchy: Difference between revisions