The most significant component in building your own PC is the casing. You can buy one or make your own by purchasing the components separately and putting them together. PC cases come in a variety of styles and designs, each with its own set of functions. They might be small or large, depending on the motherboard’s size, or they can be the same size. Portable computer cases are an excellent method to keep your computer safe and secure while you’re on the go. A Portable PC is a computer or laptop that has most of its internal hardware components packed into a tiny container that may be easily transported.