Posted by Jan-Jan Defante On Wednesday, February 13, 2013 0 comments
You probably connect to the internet every single day. At least once. But have you ever wondered how it actually works? What is actually happening for you to be able to check your email, run a Google search or read the news?
We take a look behind the scenes to let you know how internet access actually works. We break it down in simple terms (no technical mumbo-jumbo) so that you can know for sure what goes on when you connect to the internet either by ADSL or wirelessbroadband.
The first thing you need to know is that the internet is made up of a giant network of interconnected computer networks. These networks are run by service providers, governments, universities and companies all over the world. The networks transmit data to each other creating one, big network which allows you to send those emails, get your work done and check Facebook.How the internet works overall is probably going to involve a very long, very detailed conversation. So let’s skip right ahead and take a closer look at how your wireless broadband or ADSL connection work.
How Does WiFi Work?
To understand how WiFi works, you first need to understand that there are two different types of wireless internet access. There’s the wireless connection you get on your phone through mobile service providers and then the wireless connection you connect to through a router; either at home, work or in a public place, like a café. Ultimately, though, these work in a very similar way.
Believe it or not, your wireless internet connection is made possible by radio frequencies.
To connect to the internet, your computer or your mobile phone will pick up signals either from a router or a mobile phone tower. Internet Service Providers will use cabling or radio transmitters to relay signals to a tower. Your device will pick up a signal from the tower closest to you. This signal may have bounced off another (or several) towers before it reaches your device or may transmit directly if you are close enough.
Once the signal reaches you, it will go through your modem. Modem is short for modulator/demodoulator. Mo-dem. (Get it?)
The modem will either modulate or demodulate the signal. Modulating will mean that the outgoing information is transformed into something that can be understood by the wireless network. Demodulating means the signal is being transformed into something that can be understood by your computer.
Who would have thought all of this could be done in a matter of seconds?
How Does ADSL Work?
ADSL stands for “asymmetrical digital subscriber line”. To work, it uses existing copper telephone cables. Basically what ADSL broadband does is split your existing telephone line into two distinct channels. One channel is used for your general voice calls and the other is used to transmit data at a high bandwidth.
The data connection operates at a higher frequency range than the connection needed to make your telephone calls.
For the internet signal to transmit to your device, it is sent between two broadband modems: one which is stored in your house (or office or public place) and the other with your telephone network or internet service provider. Your modem works hard to get the most data it can to your computer. To do this, it divides the frequency range into a number of channels. The channels are used independently and your modem will search for the best ones to use ensuring that you can transmit the maximum amount of data at all times.
There are pros and cons to both wireless broadband and ADSL connections, but ultimately both offer fast and reliable access to the internet, keeping you connected to the World Wide Web.
This article is courtesy of Vividwireless - an Aussie based wireless broadband and 4G mobile internet provider.