WIRELESS

Wireless is an English word that can be translated as "wireless" or "wireless . " Its use, therefore, could be linked to any type of communication that does not require a physical means of propagation. However, the notion of wireless is mainly used to refer to wireless communications within the framework of computer technologies.

In a wireless communication, therefore, the emitter and the receiver are not linked by cables, but rather use the modulation of electromagnetic waves through space to send and receive data .

The computers and mobile phones are among the devices that can use wireless connectivity. For this they must be equipped with cards or antennas prepared for this purpose.

For those devices that do not have such an antenna, in many cases there are external adapters that are easy to install and, generally, at very affordable prices. In the case of computers, both laptops and desktops, that are not prepared to connect through wireless networks, adapters are often used that connect to a USB port and search for the closest access points or devices (from according to the technology you want to use, which can be WiFi or Bluetooth, among others).

Radio frequency waves help communicate when one of the actors has no fixed location. A person with a laptop, for example, can move around the world and maintain communication thanks to the wireless connectivity of systems such as WiFi .

This is especially useful for people who travel very frequently, since all international airports offer Wi-Fi access points to their customers free of charge, giving them the possibility to make last minute inquiries regarding their travels, book a hotel room or just say goodbye to your loved ones through a chat session .

Today, however, wired networks still have advantages over wireless, especially in terms of the speeds they support. This means that in a network that operates via cables, data is transmitted faster than in a wireless network.

Another problem that wireless networks can face is the loss of signal , when radio waves do not reach the transmitting or receiving equipment due to interference or various environmental factors . It is known that wireless networks are susceptible to electromagnetic radiation from certain devices, very common in homes and offices, which is why a WiFi connection does not usually provide its users the same speed as when using the same service through a connection by cable.

In the case of computer peripherals and video game consoles , several wireless alternatives to keyboards, mice and traditional controllers emerged already in the 90s, but they always had to face the limitations of batteries: their size is directly proportional to their capacity (which inevitably affects the weight they add to the product they feed) and the cost of production is very high.

As the years go by, batteries become more and more economical, but the demands of the devices, greater. For example, state-of-the-art mobile phones, capable of taking photos and videos, connecting to the Internet, playing music and movies, playing video games and all kinds of applications, do not usually have an autonomy much greater than 24 hours, time which decreases considerably the more calls are made.

In any case, the comforts provided by wireless technology are many and very tempting, above all because they give more flexibility when arranging devices in a room and protect them from falls due to entanglements with cables.