Abstract: The present disclosure provides an electronic device that comprises a memory and a controller. The memory includes a first memory location and a second memory location, which are configured to store data in an alternate manner The controller is configured to write, when connection of a display to the electronic device is detected, extended display identification data (EDID) of the display through a first channel to one of the first and second memory locations, and to enable the EDID of the display to be accessible to hosts through second channels.

Abstract: The present disclosure provides an electronic apparatus that comprises a number of Universal Serial Bus (USB) device control modules, a microprocessor, a priority arbitration module, a USB host control module and a USB hub module. The USB device control modules are configured to receive from and send to a host a USB electric signal. The microprocessor is configured to generate a number of virtual USB hub modules in a memory. Each of the virtual USB hub modules is configured to generate a USB device enumeration signal, in response to an electric connection status between a USB electronic device and the USB hub module, and to send the USB device enumeration signal via a corresponding one of the USB device control modules to the host. The priority arbitration module is configured to, in response to the availability of the USB electronic device, transmit the USB electric signal issued from the host to the USB electronic device via the USB host control module and the USB hub module.