Dell inspiron 2200 laptop - what are the 4 lights on top right of keyboard for? the first one is constantly blinking and the others are never lit up

Hi those are your keyboard and status lights

Looking at your laptop from the front the first light on your Right hand side is your scroll lock light and is only on when you press the scroll lock button (the symbol shows a lock with a little down arrow)

The light to the left hand side of that light is your caps lock light and again only turns on when you press the caps lock key (The symbol shows a lock with a A in it)

The light to the left hand side of that is your numeric keypad light (Symbol has a lock with a 9 in it), this comes on when you press the num lock key on your keybaord

Finally the last key is your hard drive light (like a cylinder), this will be flashing most of the time as you use your PC as it is constantly reading and writing data

Regards
Shauqat