AC/DC

No I am not talking about the rock 'n roll band AC/DC thunder sign. I am talking about power cord supply for labtops when they get damage and you need to buy a new one. It is important to understand the Input and Output voltages which there is a difference between them two. Many people might ignore the fact that they simply see "oh, there is a input voltage about 120 v", however we must understand the electrical voltages needed to have the outlet at the wall jack. However the output voltage needs to be look upon and not ignore because that will give you a great idea what general power cord you might need to buy. In this case it is 19 voltage for output instead I ended up buying a 12 voltage power cord. Oh,well, this happens.