Today’s technology is so miniaturized that sometimes we are not aware of its presents. If many things do their jobs, we don’t want to notice that they’re doing their jobs, and for that they are the heroes of the digital age.

In many situations when some of these heroes breaks, we don’t know what’s problem and how to fix it.Our laptops are probably the most do- anything and go- anywhere gadgets. It can do all kinds of amazing technological stuff.

Charging Port

Charging Port

This technological gadget is an incredibly complex machine with numerous tiny moving parts inside. But one of the most interesting part of your laptop isn’t inside it.

Many of us have probably noticed a cylinder wrapped around the charging port at some point.The weird thing is that mobile phones charging cords don’t have one. We all know that the smart phones are mini computers, so what’s up with that?

This Little Cylinder is Called a Ferrite Bead

This small cylinder plays a big role in keeping your laptop to run well.Those tiny moving parts that we mentioned above are found in the laptop’s hard drive, video card, motherboard, and all of them spin and vibrate and produce radio frequencies.

The case around the laptop stops those vibrations in order to prevent interference. Our phones don’t create those frequencies, so those moving parts are not needed.The cables attached to our laptops act as antennae.

They can broadcast vibrations as ratio frequencies, which can create interference. Imagine to use you Wi-Fi with random competing signals in the way.

That will be like trying to listen a favorite song on seven different tunes playing at the same time.Those interfering signals can be avoided only with snapping a cylinder filled with ferrite- an alloy of iron oxide.

So finally a ferrite bead is a cheap and effective way to prevent interference between your many electronic devices in order to keep them from shouting nonsense at each other.