Originally Posted by German Expat
2) Almost every laptop will have at least 1 slot open to install more ram. You would need to look at the manufacturers web site to find out how much and how to install it. Actually ram is a big saving if you buy 3rd party ram instead of oem. I just bought 512 MB additional ram for my private spare laptop for around 40$.
Most laptops these days use DDR memory and that's better used in pairs. 2x256 is not only cheaper than 1x512 but faster.