A neighbor asked me to wipe their PC hard drive so they could give the PC to a friend.<BR><BR>I took my XP disc over, since they didn't have one, and tried to boot from the CDROM. Wouldn't do it. So I ...

Clearing the CMOS memory on your motherboard is often the quickest way to access a desktop when you don't know the BIOS password. The password, along with your other BIOS settings, goes back to the ...

OK I have this K7SEM system I built for a friend about 2 years ago. She brings it back saying it won't boot. I check it out .. it won't even POST. Lights and fans, but no display or beeping, except if ...

The MM54C221/MM74C221 is a dual CMOS monostable multivibrator. Each one-shot has three inputs (A, B and CLR) and two outputs (Q and Q ). The output pulse width is set by an external RC network. The A ...