You've changed with the times. Has your PC? Did you know 33 percent of U.S. computers are over 4 years old and 65 percent of them are large desktops? These computers are often big, bulky and slow. PCs today look and act differently than their 4-year-old predecessors. They’re three times faster, half the weight, boast double the battery life, and boot up in less than 7 seconds. Not sure if it is time to upgrade your PC? Check out the latest PC buyers guide to find a new device that is right for you.