How do wireless networks work?

Wireless networks use radio waves instead of cables for data transfer between computers. That is the simple version. If you are curious to know what's going on is more accurate, then it is explained in this article.

I'm sure you know that computers transmit data digitally with binary: ones and zeros. This is a kind of communication, very well translated, the radio waves, because the computer can transmit ones and zeros different types of beep. These beeps are so fastthat they are outside the hearing of a person range - radio waves that do not hear you, are, in fact, all around you all the time.

The operation is similar to Morse code. You probably already know that Morse code is a way in which the Scriptures so that they are transmitted via radio with a dot (short beep) and a dash (long dash). More importantly for this example, but it is a binary system, as well as those of a computer and zeros. You might think of wireless networks, thensuch as the Morse code for computers. They include a combined radio receiver and transmitter in, and the computer is able to send the equivalent of dots and dashes (bits) into computer language to get your data from one place to another.

You may wonder how the computer could possibly transmit enough bits to send and receive data at a speed it does. Finally, it must be a limit to how much can be sent in a second before it just useless nonsense, right? Well, yes, but the keyto wireless networks is that everybody around this problem.

First of all wireless transmissions at very high frequencies are sent, which means 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 frequency this high means that the wavelength will be very limited, which is why wireless networksworks only over a limited area.

Additionally, wireless networks make use a technique called "frequency hopping". They use a variety of frequencies in the range they are there and are constantly changing between them. This makes wireless networks more immune to interference from other radio signals than they would be if it is transmitted on one frequency.

The final step is when it comes to all computers in a network to share Internet access. This is done using a special piece of wireless devices as an access point. Access points are more expensive than wireless cards for computers, radios, as they are talking about 100 computers at the same time, and the allocation of suitable access to the Internet between them contain. Dedicated access points are only really important for larger networks, though - if you have only a few computers, it is possible to use one of these as the access point, or you can only receive> Wireless router.

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 standards that all wireless devices follow. These standards are technically called the 802.11 standards, and are set by the IEEE (Institute of Electrical and Electronics Engineers). It is thanks to the people stuck to their standards, the wirelessNetworking is so easy to use and cost-effective today.

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