What is that little green light on the back of your PC?

[ShadowRider]

What is that little green light on the back of your PC that lights up even once the PC has been shut down. I know that its suppose to be on, but what purpose does it serve?

[Tommyknocker]

Your power source is available should you need to turn your computer on. So if you cannot turn your PC on, and the light is out, you do not have a good power source.

[Treebeard]

That is your network connection, if the network is on it will still be on
well that is if your on a network otherwise im not sure

[ShadowRider]

No, I'm not on a network. Its my computer that I have at home. Also, I have another stupid question: Will that green light ever go out like a lightbulb does? And if so, how long will it be until it goes out?

[Tommyknocker]

I guess he did not read my post. That is power to your PC. The next time you power down, unplug your CPU and watch it go out.

[ShadowRider]

Oh, o.k so what you're saying is that its only there to show that power is going into your PC?

[Tommyknocker]

Exactly.

[tumbar]

Its not a homing beacon from the aliens on the dark side of the moon? I had noticed that it was not always on but I figured it was when they were getting a weak radio signal. Now that I think about it though, the computer was off then too! Always learning something new. Now I wonder what they are using for the homing beacon?

[tonyp12]

Will that green light ever go out like a lightbulb does? And if so, how long will it be until it goes out?

It is a LED (Light Emitting Diode), and they last a long time.

I would guess 50-100years?

http://acept.la.asu.edu/courses/phs110/expmts/exp13a.html

[ShadowRider]

Will that green light ever go out like a lightbulb does? And if so, how long will it be until it goes out?

It is a LED (Light Emitting Diode), and they last a long time.

I would guess 50-100years?

http://acept.la.asu.edu/courses/phs110/expmts/exp13a.html

50-100 years??!! Great, then I have no reason now to unplug the power cord every night. If its 50-100 years, it'll last a while won't it :P

[leebo]

ShadowRider
Do you have DSL or cable?
I've NEVER seen a computer power supply with an LED.


But what I'd like to know is why does my computer do illegal things sometimes? Should I turn it in?