Computer system

摘要

A first electronic device has a first side provided with first and second contacts. The first contact is connected to a direct current power source and the second contact is grounded. A second electronic device has a decision circuit and a second side removably connected to the first side. The second side includes third and fourth contacts. When the first and second electronic devices are connected in a first configuration, the decision circuit outputs a first signal according to the first configuration, whereas when the electronic devices are connected in a second configuration opposite to the first configuration, the decision circuit outputs a second signal according to the second configuration.

主权项

1. A computer system, comprising:
a first electronic device having a first side, the first side being provided with a first contact and a second contact, the first contact being connected to a first direct current power source, the second contact being grounded; and a second electronic device having a decision circuit and a second side removably connected to the first side of the first electronic device, the second side being provided with a third contact disposed to correspond to one of the first contact and the second contact and a fourth contact disposed to correspond to the other one of the first contact and the second contact, the third contact and the fourth contact being coupled electrically to the decision circuit; wherein when the first side of the first electronic device is connected to the second side of the second electronic device such that the first contact is electrically coupled with the third contact and that the second contact is electrically coupled with the fourth contact, the decision circuit detects a current outputted from the first direct current power source flowing from the first contact towards the third contact, determines that the first electronic device and the second electronic device are connected in a first configuration, and outputs a first signal according to the first configuration; and wherein when the first side of the first electronic device is connected to the second side of the second electronic device such that the first contact is electrically coupled with the fourth contact and that the second contact is electrically coupled with the third contact, the decision circuit detects a current outputted from the first direct current power source flowing from the first contact towards the fourth contact, determines that the first electronic device and the second electronic device are connected in a second configuration opposite to the first configuration, and outputs a second signal according to the second configuration.