At the dawn of the digital era, the keyboard was the input peripheral par excellence. With the advent of the mouse, a great step forward was taken. What awaits us in the future is daunting. We will no longer talk about peripherals but about real digital senses. All digital technologies such as the Internet, neural networks, mobile, etc. will be involved in giving automatic machines and robots authentic senses through which they will perceive the surrounding environment in order to interact with it. In our pages, we will illustrate the state of the art of these technologies, classifying them, for now, according to the known human senses.