Upgrading your computer can make it run FASTER!
"Like a desk"
When you upgrade your memory it is like getting a larger desk. If you have a larger desk you can do more work. When your computer has more memory it can do more at once and thus be faster.
"Like a filing cabinet"
When you buy more filing cabinets you can store more files. When you upgrade to a larger hard drive, you have more space for your pictures, photos and videos.
"Like remodeling your office"
Upgrading to Windows 7 will make things easier to do and allow you to be a happier computer user.