Many laptops have easily replaceable parts. You can swap out a fading battery for a newer one, for example. Lurking beneath access panels on the underside or below the keyboard on some models are hardware components such as RAM, a hard drive, a network card, and a modem—just like laptop batteries, these units can be easily accessed and replaced by a technician. Some laptops even have panels for replacing the video card and CPU.
In this series ...