Why is the power supply in a computer still dangerous even if it has no source of current?

Can I still use computer while spyware is running a survailance check?

Why do you stack a computer?

my old emachine motherboard comes on but the power supply gives me probelms and i would like to know why because i want to us...

So a coouple days ago, my computer stopped turning on. I've checked the power supply while unplugged; you can still hear elec...

When ever I turn on my brothers computer it says 'In power save mode' no buttons I press undo it - that I know of- ANy Ideas ...

Alright, well there was one day where the computer was on. No one was using it, we have to leave it on during the day otherwi...

I have a problem with my pc, it keeps shutting down not like saving files but like the power just got cut and if that happens...

can viruses still steal passwords and personal info when the computer is off?

For an assignment in my physical computing class, we are to create a circuit using an Arduino, bread-board, wires, switches/b...

I recently changed out my power supply and fan and when everything was put back together, I no longer have an audio. what hap...