This is why your laptop charging cord has that little cylinder!

All of us have used a computer at one point of time or seen someone using a laptop at work or a coffee shop. Some of you might have had a 13 inch laptop for gaming or you might have just had a cheap one to get you through college. You might be fascinated by the moving parts that are assembled in that small case that acts as a truly portable computer, but you got to charge the laptop using the charging cable that it came with and you might have noticed a small cylinder at the end of the cable. You might have not thought of it as something big, but in fact it plays a big role in keeping your laptop working in perfect condition. Find out more in the following article.

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1 Laptop or your portable computer that you carry everywhere!

A personal computer came into existence in the year 1971. It was a computer that people could afford to buy to be kept in their homes. Soon as the PCs got more famous, people thought of building computers that you could take with you and use wherever you like. The first famous and most commonly used modern laptop was IBM N40 laptop in 1994. With the advent of Microsoft’s Windows operating system, laptops became a rage and since then, everyone has used a laptop now and then.

But have you ever thought of the components that complete your laptop? You might have seen a small cylinder on the laptop charging cable that came with the laptop. You must have wondered why the cylinder is there and what is its purpose? Click on the next button to find out what the cylinder is and what its functions are.

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Laptop or your portable computer that you carry everywhere!

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2 How the laptop parts vibrate and resonate?

You laptop is made up of many moving parts like the hard disk drive and CD drive that create vibrations as they move and do their work. The laptop comes with a battery that needs to be charged for when you want to use it where there is no power supply. The charging cable has a cylinder near the end of it and it is the most interesting part of the computer.

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The cylinder is known as a ferrite bead. The moving parts of the laptop can vibrate and produce radio frequencies. These radio frequencies can interfere with things like Wi-Fi router of your home, the dish connection and other things. Though the laptop case dulls those vibrations and keeps them from causing any interference, but the charging cord is something that aids in spreading those vibrations.

How the laptop parts vibrate and resonate

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3 How the small cylinder stops the vibrations?

The charging cable acts as an antennae and broadcasts the vibrations as radio frequencies and even pick up other frequencies and cause interference. Your Wi-Fi may act wildly if these signals compete at the same frequency at which your Wi-Fi works.

Here the cylinder comes into the play on the charging cable. The cylinder has Ferrite, which is an alloy of Iron oxide or rust. This ferrite bead kills those signals that the charging cable broadcasts or catches. It is a simple and cost effective way of keeping your laptop from interfering with other electronic devices in your home. So, here you go, the cylinder actually helps you to work without facing any issues. All the laptop users should collectively thank all the laptop manufacturers for taking care of everything so that we don’t face any problems while we work.

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How the small cylinder stops the vibrations?

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