What part of the computer sends data to CPU?
In the broadest sense, the motherboard sends data to the CPU. To be more specific, it would be the chipset, and particularly the northbridge.To follow the pathway, it works something like this. The user loads a program which is on the hard drive. The hard drive sends data to the hard drive bus controller which is connected to the southbridge of the chipset. Then that goes to the northbridge into memory and back, and from the northbridge to the CPU. Of course, some modern computers use a single chipset bridge, and in that case, the other components are inside the CPU.