Simply installing new or additional RAM sticks can kick your PC's performance into high gear. Here's how to do it, plus four options to buy.

Installing the RAM Most people can figure out how to install RAM sticks into their computer. If you can’t, there’s a tutorial here.

Knowing how much memory, or RAM, that your PC has can help you better plan which applications to install and use. Here's how to find out.

Your 2008 unibody MacBook might be a year old now, and in dire need of more memory. Fortunately, these models can use up to 4GB of the stuff, so we got hold of some to walk you through the simple ...