If your computer is running sluggish or you can't open your most recent files, then increasing the RAM is the solution. Increased RAM means that when information is called up from the hard drive to be displayed on the screen, it has more free space in which to do so. Imagine if a company with an assembly line had only one machine-- like if Nike had only one machine for manufacturing shoes and had to use that machine for everything from making soles all the way up to airbrushing designs on top of their sneakers; we'd end up with some pretty slow lines!...