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?

If you're not familiar with networking technology, then the two boxes that sit quietly in the corner of your room or basement likely seem more mysterious than they are. Each device — the internet ...

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 ...