All these input and output devices have to be connected to some sort of computer. With competing products in the virtual reality world, this is done by hooking up the device to some sort of an external computer. This could be a mobile phone, desktop, or laptop computer. Of course, with that last option, you lose the possibility of walking around, so the engineers at Microsoft have not gone down that route. Instead, they put all computing parts inside the device. You will find a complete Windows 10 computer and a special piece of hardware that Microsoft calls the Holographic Processing Unit, or HPU in short, inside the device. So, the computer consists of a CPU, a GPU, and an HPU, making it quite powerful.
The HPU is there for a ...
