Laptop upgrade

Some time ago I upgraded my desktop with additional memory, a bigger hard-drive and a new internal DVD writer. Although hesitant at first, I now think nothing of opening up the PC and sticking my screw-driver in there (disconnecting the power first of course). I have not as yet tried to fit laptop memory in my laptop yet, but I definitely need a new hard-drive, so maybe I’ll upgrade the memory at the same time. More memory allows your computer to work faster and do more tasks at the same time.