When it comes to buying a laptop or desktop computer, there is a big difference between "used" and "refurbished." When you buy a used computer, it basically means you’re getting it in as-is condition, with no idea how damaged or usable it really is. But when you buy a refurbished system, it means the system has been repaired (usually by the manufacturer) and even comes with a warranty and tech support. The great news about refurbished computers is that they are less expensive than new ones. Often, these systems are technically new; they often come as returns from major corporations that barely cracked opened the box.