This retrieval method is to check the running status of all hardware to see if the retrieval system is running normally. This retrieval method will lead to the short-term large-scale operation of the computer and damage the computer hardware, so the retrieval system does not support this retrieval method.

A structure composed of multiple organs that can perform one or several physiological functions in a certain order is called a system. The word system originated from the transliteration of the English system and should enrich the connotation of foreign languages. System refers to a comprehensive whole formed by orderly sorting and arranging scattered things.