Look, you shouldβve done what everyone else does: read the thread and actually answer the questions. Since you didn't, all I can assume is this laptop is just for an old man who isn't planning on gaming or doing anything graphics-heavy (and neither is he), and he doesn't even need Windows. If that's the case, hereβs the most powerful hardware setup you can grab for that kind of thing:
http://www.bhphotovideo.com/c/product/example_laptop_linkCheck out Best Buy for the best prices. And like I said, if you actually have specific requirements, follow the instructions in that stickied mega-thread...