Abstract: A discharge circuit applied in a motherboard includes a platform controller hub (PCH), a first electronic switch, a second electronic switch, and first capacitor. A control terminal of the first electronic switch is coupled to a standby pin of the PCH. A second terminal of the first electronic switch is coupled to the standby power. A control terminal of the second electronic switch is coupled to the second terminal of the first electronic switch. A second terminal of the second electronic switch is coupled to a first power source through a resistor coupled with a capacitor in parallel. The standby pin of the PCH outputs a digital low signal, to control the first electronic switch is turned off rapidly, and the second electronic switch is turned on. A voltage of the first power source is discharged through the resistor rapidly.

Abstract: An electronic device includes a motherboard that includes a south bridge, a universal serial bus (USB) 3.0 connector, and a ground module. The south bridge is connected to the USB3.0 connector for transporting USB3.0 signals and USB2.0 signals. The grounded module is connected to the south bridge and the USB3.0 connector. The south bridge is used for controlling the ground module to work. The USB2.0 signals transmit between the south bridge and the USB3.0 connector flow into the ground, while the ground module is working.

Abstract: An electronic device includes a motherboard that includes a south bridge, a universal serial bus (USB) 3.0 connector, and a ground module. The south bridge is connected to the USB3.0 connector for transporting USB3.0 signals and USB2.0 signals. The grounded module is connected to the south bridge and the USB3.0 connector. The south bridge is used for controlling the ground module to work. The USB2.0 signals transmit between the south bridge and the USB3.0 connector flow into the ground, while the ground module is working.

Abstract: A detection device detects the integrity of a connection between respective connectors of two devices. The detection device includes a control chip, an electronic switch, and an alarm member. The control chip is connected to the alarm member through the electronic switch. When the detection device works, the control chip is connected to the detection pin of the first connector. When the first connector is properly connected to the second connector, the detection pin outputs a first signal to the control chip causing the electronic switch to be off. When the first connector is connected with the second connector improperly, the detection pin outputs a second signal and the control chip turns on the electronic switch, sounding an alarm.

Abstract: A detection device detects the integrity of a connection between respective connectors of two devices. The detection device includes a control chip, an electronic switch, and an alarm member. The control chip is connected to the alarm member through the electronic switch. When the detection device works, the control chip is connected to the detection pin of the first connector. When the first connector is properly connected to the second connector, the detection pin outputs a first signal to the control chip causing the electronic switch to be off. When the first connector is connected with the second connector improperly, the detection pin outputs a second signal and the control chip turns on the electronic switch, sounding an alarm.

Abstract: A detecting circuit for detecting a signal wire includes a first port, a second port, a control chipset, a transistor, and a LED. The first port is connected to the second port via the signal wire. The first port includes a first display mark bit pin which is configured to connect to ground when a signal wire connects the first port and the second port well. The control chipset includes a control pin and a detecting pin connected to the first display mark bit pin. The transistor is coupled to the control pin and a power source. The LED is connected to a power source via the transistor. The control pin actives the transistor and thereby active the LED, in event the detecting pin detects that the first display mark bit pin is not connected to ground.

Abstract: A discharge circuit applied in a motherboard includes a platform controller hub (PCH), a first electronic switch, a second electronic switch, and first capacitor. A control terminal of the first electronic switch is coupled to a standby pin of the PCH. A second terminal of the first electronic switch is coupled to the standby power. A control terminal of the second electronic switch is coupled to the second terminal of the first electronic switch. A second terminal of the second electronic switch is coupled to a first power source through a resistor coupled with a capacitor in parallel. The standby pin of the PCH outputs a digital low signal, to control the first electronic switch is turned off rapidly, and the second electronic switch is turned on. A voltage of the first power source is discharged through the resistor rapidly.

Abstract: A distributed computing system is disclosed. The system includes a host computer and a plurality of mobile computing devices in communication with the host computer via a communication network. The host computer splits a computing task into a multiple independent calculations and assigns the independent calculations to the mobile computing devices. The mobile computing devices execute the independent calculations and transmit results of the independent calculations to the host computer. The host computer obtains an end result of the computing task by combining the results of the plurality of independent calculations. A distributed computing method is also disclosed.