Hardware modifications refer to the changes made to the physical components of a device or system. This can include upgrading parts like graphics cards, hard drives, or memory to improve performance or add new features. Modifications can also involve customizing the exterior, such as adding LED lights or changing the casing. These changes can enhance the functionality and lifespan of devices, making them more suitable for specific tasks. For example, gamers often perform hardware modifications to ensure their computers can handle demanding games, while professionals may upgrade workstations for better productivity.