In the video, a person is seen working on a computer tower. The person is using a screwdriver to remove screws from the side of the tower. Once the screws are removed, the person proceeds to remove the side panel of the tower, revealing the internal components. The person then takes a power supply and begins to connect it to the motherboard. The video provides a close-up view of the person's hands as they work on the computer, with the focus on the actions being performed.