How to detect system information like os or device type

Question

The most important things I want to know are the device type, the OS version, if it has a hardware keyboard and maybe the screen resolution. but if you know other useful deb

Answer 1

Update on screen resolution: getHeight() and getWidth deprecated in API level 13 - HONEYCOMB_MR2; use getSize(Point) instead. More info at: http://developer.android.com/reference/android/view/Display.html