Blinking lights near an ethernet port on an ethernet switch - Kynny/Getty Images Have you ever looked at the back of your computer and noticed the lights where the cables are plugged into your PC?

I have a Dell Dimension 4600 that has none of it's original parts, with the exception of the mobo & CPU. I tried to turn it on the other day and nothing happened. The only noticable sign of life is ...

Router lights blink to show real-time data activity, not just problems. Different speeds and colors indicate startup, active ...

Wherever you have your home router positioned, a desk, a bookshelf or an entertainment stand, it's hard not to notice all those blinking lights. Sure, they serve the basic purpose of letting you know ...