The interface between the motherboard and an external device is called ________. 

The correct answer is Port.

Key Points

• A port serves as a connection point for external devices to communicate with the computer's motherboard.
• Ports can be found in various types, such as USB ports, HDMI ports, and Ethernet ports, each serving different functions.
• Ports allow for the transfer of data between the computer and external devices like printers, monitors, and external storage devices.
• The functionality and data transfer speed of a port can vary depending on its type and version.

Additional Information

• Register: A register is a small amount of storage available as part of a CPU. Registers are used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU.
• Switch: A switch is a networking device that connects devices together on a computer network by using packet switching to receive and forward data to the destination device.
• Bus: A bus is a communication system that transfers data between components inside a computer, or between computers. This includes data buses, address buses, and control buses.