Why is auxiliary memory required
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Auxiliary memory, also known as auxiliary storage, secondary storage, secondary memoryor 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.
It is used to store a large amount of data at lesser cost per byte than primary memory; secondary storage is two orders of magnitude less expensive than primary storage.
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*Auxiliary memory is required so that set of instructionsgiven 1st stored in temporary memory which can be stored.*
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