Step 1: Answer in English

Wi-Fi is a popular wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections. The name "Wi-Fi" is a trademarked brand name created by the Wi-Fi Alliance, an industry association formed in 1999 to certify interoperability of wireless networking products based on the Institute of Electrical and Electronics Engineers' (IEEE) 802.11 standards.

The term "Wi-Fi" is often used as a generic name for any type of wireless local area network (WLAN), but it technically refers only to products that have been certified by the Wi-Fi Alliance. Wi-Fi products must pass a series of tests to ensure that they interoperate with other Wi-Fi devices.

The "Wi" in Wi-Fi originally stood for "Wireless Fidelity", in analogy to "Hi-Fi", which stands for "High Fidelity" and is used to describe high-quality audio equipment. However, the Wi-Fi Alliance has since dropped the "Fi" part of the name, and simply refers to the technology as "Wi-Fi".

Wi-Fi technology is based on the IEEE 802.11 standards, which define the protocols and frequencies used for wireless networking. There are several different versions of the 802.11 standard, each with its own set of features and capabilities. The most common versions of the 802.11 standard are:

* 802.11a: Operates in the 5 GHz frequency band and provides data rates of up to 54 Mbps.
* 802.11b: Operates in the 2.4 GHz frequency band and provides data rates of up to 11 Mbps.
* 802.11g: Operates in the 2.4 GHz frequency band and provides data rates of up to 54 Mbps.
* 802.11n: Operates in both the 2.4 GHz and 5 GHz frequency bands and provides data rates of up to 600 Mbps.
* 802.11ac: Operates in the 5 GHz frequency band and provides data rates of up to 1.3 Gbps.
* 802.11ax: Operates in both the 2.4 GHz and 5 GHz frequency bands and provides data rates of up to 6 Gbps.

Wi-Fi technology is used in a wide variety of applications, including:

* Home networking
* Office networking
* Public Wi-Fi hotspots
* Industrial automation
* Medical devices
* Transportation systems

Wi-Fi technology has become increasingly popular in recent years due to its convenience and affordability. Wi-Fi networks are easy to set up and can be used to connect a wide variety of devices, including laptops, smartphones, tablets, and printers.

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We (the founding members of the Wireless Ethernet Compatibility Alliance, now called the Wi-Fi Alliance) hired Interbrand to come up with the name and logo that we could use for our interoperability seal and marketing efforts. We needed something that was a little catchier than "IEEE 802.11b Direct Sequence".read more >>