The notion of holographic memory dates back to 1963, when Pieter van Heerden, a researcher at Polaroid, first proposed using the method to store data in three dimensions. In theory, it is a great idea. Existing media store data in only two dimensions. Adding a third would make storage devices far more efficient. But despite massive spending over four decades, a complete, general-purpose system that could be sold commercially has eluded both industrial and academic researchers. It is still elusive. But it is getting closer. The first commercial holographic memory should be on the market next year, and more are expected to follow. When that happens, there may be a ballooning of computer storage capacity that will make existing disks look like leaflets compared with the Encyclopaedia Britannica.
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机译：全息存储的概念可以追溯到1963年，当时宝丽来的研究员Pieter van Heerden首次提出使用该方法来存储三维数据。从理论上讲，这是一个好主意。现有媒体仅在两个维度上存储数据。增加三分之一将使存储设备效率更高。但是，尽管在过去的40年中花费了巨资，但可以在商业上出售的完整，通用的系统却使工业和学术研究人员望而却步。它仍然难以捉摸。但是它越来越近了。第一款商业全息存储器应于明年上市，并且预计还会有更多。发生这种情况时，与大英百科全书相比，计算机存储容量可能会激增，这将使现有磁盘看起来像传单。
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