HCI (Host Controller Interface)

The Host Controller Interface (HCI) is a standard that allows a computer's main processor to communicate with hardware devices, like Bluetooth or USB. It acts as a middleman, ensuring that data is transmitted smoothly between the computer and these devices. By standardizing this communication, HCI makes it easier for different devices to connect and work together, improving compatibility and efficiency. Essentially, HCI simplifies how devices interact with computers, enabling features like file transfers, internet connections, and device control.