但要成为特性优良的通用型信息存储系统，就必须以可接受的误码率同时满足这些性能指标（计算机外存储器的基本要求是使用户误码率低于10 - 12 ） 。

But in order to make it a general-purpose data storage system, it is very important to attain these desirable goals simultaneously with the acceptable bit error rate (BER)(10 -12).

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将计算机的内存储器与外存储器相比，内存的主要特点之一是C。

Will the computer memory and external storage inside the main characteristics, memory than one is c.

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内部存储器：根据存储器在计算机中所处的不同位置，可分为内存和外存。

Internal memory: According to its position in a computer, memory can be divided into internal memory and external memory.

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