1. A computing apparatus, comprising: a conversion unit, receiving a first instruction sequence in which each instruction in the first instruction sequence belongs to an instruction set, and combining a second instruction sequence having the same function as the first instruction sequence with at least one specific instruction in a power saving mode to obtain and output a third instruction sequence, wherein the at least one specific instruction does not belong to the instruction set; a data storage unit, comprising a volatile part and a non-volatile part; and an instruction processing unit, coupled to the conversion unit and the data storage unit, wherein the instruction processing unit process the third instruction sequence, and manages a storage state of the data storage unit according to the at least one specific instruction.