The computer companies love the fact that many out there trade in their computer for a new one frequently because they think it is too slow. It is too slow, but not because the computer is slow, but because there is not enough RAM. Suppose you buy a computer from HP. Unless it is more expensive computer, it will have enough RAM to run fine, but after a couple years or so, it just gets slow. That's most often because of the RAM, not the processor. In other words, if you just add more RAM, you may feel like a brand new system. That's why it is important to know a little bit about it, how to get more, and how to install it into your computer.