A completely dead power supply unit (PSU) will result in absolutely no activity on the PC when the user attempts to boot it up. The professor can demonstrate how to replace a desktop PSU using either a real physical desktop computer or with a video available on YouTube or another video streaming website. Obtain from 2 to 5 jpg picture files off the Internet and clearly annotate and edit the pictures to show the reader how to replace a desktop PSU in the space below. Assume the reader has never replaced a PSU before.