The whole system is controlled by a special computer system provided with back-up memory, key-board, micro-printer and led display.

专用电脑有后备存贮器、键盘、微型打印机及LED显示器。

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DMDS adopts pair of system back-up and mirror-back-up memory technology. So the system has high reliability of metadata management.

具有容错能力的双元数据服务器采用双系统备份、镜像复制存储技术，从而保证了元数据管理的高可靠。

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It then commits just a part of the memory, and it is only for this part that the memory manager needs to allocate pages in real memory and in the paging file to back them up.

然后它仅仅提交一部分内存，这也是内存管理程序需要在实际内存和分页文件中分配页来支持它们的那一部分。

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It's actually better, he says, because, if you back up your data in enough places, this digitized "e-memory" never forgets.

CNN: Microsoft researcher building 'e-memory'