The functions and capacities of devices differ. That is why when you go into a store, you may need to be specific about what you are looking for. For instance, gaming laptops are wholly different from laptops used strictly for work functions. Therefore, if you want a laptop for gaming specifically there are certain brands that you will be pointed to. Secondly, understanding the capacities of your device can help you make a selection. This comes down to things such as the storage. You can always purchase more space from the best cloud storage services, however in the time being, you need to know how much space you want on your device. For example, animators often have to have a large space to save their projects because animation takes up large amounts of space. Do you need the same amount?