Hey, I'm wondering if there is a way to make a laptop plug in to another computer like an external hard drive. I currently have a 19-inch laptop, but it's just too big to take to university, which is what I need. So, I'm looking at purchasing a smaller, 13-inch laptop, to take with me. But the screen size on that one is just awkwardly small to actually do large amounts of work on. So, I was wanting to get the small laptop to work like a external HDD and be able to plug it into my big laptop when I get home and get my data off it without having to transfer it across using a USB or anything...