Hm... well, it's my father's, so i'm not sure about everything. xD
It is a laptop i think... (not sure what's the difference between laptop and netbook) It even has better hardware than my computer at home, though as a laptop, it's prone to overheating.
The regular screen resolution is 1366x768, the maximum for this screen. About the size in inches, i dunno. XD
For some reason the resolution in the RO setup is at 1280x720. Not sure why i didn't take the full resolution, or maybe it reset itself, because Windows 7 loves to mess with the installed programs. I also set the homunculus AI correctly, yet the homunculus never behaves as i set it. (It runs away when the hp is low, although i set it to fight until death!)
edit: I set the resolution to 1366x768 and started the game, then made a screen... it's still messed up.