Wireless networks use radio waves instead of cables to transfer data between computers. It’s the simple version. If you’re curious to know what is happening is more accurate, then it is explained in this article.
Ones and zeros.
I’m sure you know that computers transmit data digitally with binary ones and zeros. It is a type of communication, very well translated, radio waves, because the computer can transmit ones and zeros different types of beep. These beeps are so fast they are outside the hearing of a man are on the field - radio waves that can not hear you, are, indeed, all around you all the time. This does not prevent him from computer use, however.
Morse code.
The operation is similar to Morse code. You probably already know that Morse code is a mode in which the Scriptures so that they are transmitted by radio with a dot (short beep) and a hyphen (dash). It was manually for years, and was a good way to get information from one place to another with the invention of the telegraph. More importantly in this example is a binary system, as well as a computer and zeros.
You might think of wireless networks, then, as the Morse code for computers. They include a radio receiver and transmitter combined, and the computer can send the equivalent of dots and dashes (bits) computer language to get your data from one place to another.
All about frequencies.
You might ask, if, as the computer could possibly transmit enough bits to send and receive data at speeds he does. Finally, it must be a limit to what can be sent in a second before just useless nonsense, right? Well, yes, but the key for wireless networks that must happen around this problem.
First of all wireless transmissions at very high frequencies are sent, meaning that more data can be transmitted per second. Most wireless connections use a frequency of 2.4 gigahertz (2.4 billion cycles per second) - a frequency similar to mobile phones and microwave ovens. As you may know if a high frequency, this means that the wavelength must be very short, which explains the networking wireless only works over a limited area.
In addition, wireless networks use a technique called “frequency hopping”. They use a variety of frequencies in the range, they are there and changing them. This makes wireless networks more immune to interference from other radio signals than they would if it is transmitted on one frequency.
Access points.
The final step is when it comes to all computers in a network to share Internet access. This is a special piece of wireless as an access point. The access points are more expensive than wireless cards for computers, radios, like talking about 100 computers at the same time, and the allocation of appropriate access to the Internet in the hold. Dedicated access points are really important for larger networks, though - if you only have a few computers it is possible to use one of them as the access point, or simply d buy a wireless router.
They understand.
This is all well and good, but how does wireless equipment made by entirely different companies will work together if this is all so complicated? Well, the answer is that the standards that all wireless devices follow. These standards are technically called the 802.11 standards and are defined by the IEEE (Institute of Electrical and Electronics Engineers). He is stuck, thank you for people to use their standards, putting wireless networking as easy and cost-effective today.
You do not have to worry.
If all these stories of frequencies you a little worried, you do not need - the equipment of wireless networks and the software handles all this automatically, without requiring you to do something. Do not think you should go to any mobile device on a different frequency to say, because he does not just happen, right? Wireless networks, in all its complex processes, is really much easier than you think.
