Your favourite colour is blue, from jeans to shirt, from car to paint of your house you prefer everything around to be blue. And continuing your affinity, you go in for the Big Blue. The best in the business – an IBM machine. A cos dating back to the 19 century is worth every penny in gold and to opted for their system is certainly the way to do it. but having brought one, its been for a while that you hand any add on to the system. Though it was never needed, but now for sure you want to add more meat to you machine. So, finally you go in for an IBM Memory Upgrades. And once you want to add up in you system, you certainly need to go for the best available upgrade. Certainly, IBM spoils you for choices with their IBM Memory Options. You have ThinkCentre Memory, ThinkPad Memory and the like to chose from. And here what is most important is the difference you need to know - ThinkCentre Memory, is for your computer, whereas, ThinkPad Memory is for your laptop. When you do the memory upgrade you do install additional RAM into the SO-DIMM memory upgrade. Simple