If you are buying a new desktop or laptop, one of the specifications you might care about is how much data it can store. After all, your family computer needs plenty of storage for your photos and documents, and if you have kids, they’ll want to install games and other applications on it that fill up a hard drive. These days, however, it’s less about how much space your hard drive has and more about how fast it can run. Let’s explain this, and then talk about something you should almost always look for when picking a hard drive for your PC.