Answer:
A power supply consists of wires connecting the cpu and other parts of the computer. The data bus transfers data between CPU and memory unit.
Explanation:
Assuming you're running Windows, click the start button, and then search for "Device Manager" (or open CMD or PowerShell and type devmgmt.msc). Look at the list of devices. If Bluetooth is there, you have it; if it's not there, you don't.
So I am able to print my math notes and keep up in geometry.