Who is invited the CPU?

The term "CPU" stands for Central Processing Unit, which is the main component of a computer that performs most of the processing inside the device. If you meant "who is invited to the CPU," it may refer to the various components and peripherals that connect to and communicate with the CPU, such as RAM, storage devices, and input/output devices. However, if you're asking about a specific event or context involving a "CPU," please provide more details for a more accurate response.