Segmentation of single storage device into plurality of independent partitions or systems using circuit technology

The invention discloses a method for dividing a single storage device into a plurality of independent partitions or systems by using a circuit technology, and relates to the technical field of mobile storage equipment, the method comprises a mobile storage device and an external port, the mobile storage device is used for carrying out instructions such as reading and writing with an external operation system based on the external port, and the mobile storage device is connected with the external operation system. The mobile storage device is provided with a plurality of entity partitions, only one entity partition of the mobile storage device is used at the same time, other entity partitions are in a closed state, and the entity partitions are independent and can use different types of operation systems. The single storage device is divided into a plurality of entity partitions by using a circuit technology, so that the single mobile storage device can be used as a plurality of independent operation systems,