Auxiliary memory

（重定向自Secondary memory）

USB flash drives, a type of secondary storage.

The bottom surface of a compact disc, showing characteristic iridescence.

A hard disk drive with protective cover removed.

Auxiliary memory, also known as auxiliary storage, secondary storage, secondary memory or external memory, is a non-volatile memory (does not lose stored data when the device is powered down) that is not directly accessible by the CPU, because it is not accessed via the input/output channels (it is an external device). In RAM devices (as flash memory) data can be directly deleted or changed.

单词	Secondary memory
释义	Secondary memory 英语百科 Auxiliary memory （重定向自Secondary memory） Auxiliary memory, also known as auxiliary storage, secondary storage, secondary memory or external memory, is a non-volatile memory (does not lose stored data when the device is powered down) that is not directly accessible by the CPU, because it is not accessed via the input/output channels (it is an external device). In RAM devices (as flash memory) data can be directly deleted or changed.
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