I'm using an HP G60 series laptop that I bought about 3 years ago, and it came with Windows 7.
And I'm seeing a bunch of ads for Windows 8. Right now I'm thinking one of the major changes is that Windows 8 uses a touchscreen instead of a mouse (some people are saying that it makes the mouse obsolete).
Is a touchscreen a hardware or software thing? Or maybe both. And if I upgrade to Windows 8, will I need a new screen?