Purchasing and Maintaining a Computer On the left is a Description missing a word or phrase. On the right is the list of Items. Click on a Description on the left, then click on an Item on the right that completes the Description. Description To prevent power fluctuations from damaging electronic components, you should always use a with your computer. You can avoid data loss by installing an uninterruptible supply (UPS) to prevent power loss to your computer in the event of a power outage. Because electronics need to stay , computers have built-in systems to keep components from overheating. will affect the data on older storage technology such as floppy disks, but are no danger to newer systems that use solid-state technology. Keep a can of compressed near your work area, and use it to clean dust off your keyboard or pointing device. Item surge suppressor power air cool magnets