1) A man changed his computer's hardware configuration because the balance between his computer's performance and modem was not optimal, causing slow loading times. 2) A man put his computer in a refrigerator to cool the CPU, believing from something he read online that overheating could damage the CPU, though in most cases CPUs are not damaged by heat. 3) Bob did not fully understand his father's requests, so he plans to listen again carefully and take notes on the questions his father asked, as his father asked multiple questions at once.