Computers are machines. Like most machines, they are made up of various, sometimes moving parts, that allow them to function in different ways. These hardware components have been specially designed over the years to perform their unique functions with different levels of speed, capacity, and ability.
For instance, someone like an office worker might have a small hard drive in their work computer, where they don’t need to store much data beyond simple text files. However, someone like an independent film editor or a digital artist might need a larger hard drive to fit all the video and image files on their computer. Of course, when we talk in terms of “small” or “large,” we don’t mean physical size. Hard drive size references its capacity, or how much data it can hold. We’ll get to this later.