I've worked with desktops a ton but my laptop knowledge is very unimpressive. I have an emachines w4620 and I want to put more memory into it. It says it is ddr memory, can anyone tell me what kind of memory I would need to buy for it?
Just look for DDR SODIMMS. you may want to check with your laptop manufacturer, as the max memory is sometimes less than desktops. My Dell, for instance, can only handle 2 gigs of memory max. But, yeah. find out what speed your current SODIMMs are and then buy new DDR SODIMMs.
Here's a good start: a list of all DDR SODIMMs on pricegrabber: