What does WIFI mean, what does wifi mean

1. WiFi is a technology that can wirelessly connect terminals such as personal computers and handheld devices (such as PDAs and mobile phones).

2. Wifi technology, like Bluetooth technology, belongs to the short-range wireless technology used in the office and home.

Wi-Fi is a technology that allows terminals such as PCs and handheld devices (such as PDAs and mobile phones) to be wirelessly connected to each other. Wi-Fi is a brand of wireless network communication technology owned by the Wi-Fi Alliance. The aim is to improve interoperability between wireless network products based on IEEE standards.

Nowadays, most people confuse Wi-Fi and IEEE. Even equate Wi-Fi with wireless internet.

WiFi, also known as "wireless hotspots" or "wireless networks", is a trademark of the Wi-Fi Alliance, a standards-based wireless LAN technology.

Wireless network in the scope of wireless LAN refers to the "wireless compatibility certification", which is essentially a commercial certification, but also a wireless networking technology, in the past, the network cable was connected to the computer, and Wi-Fi is connected to the network through radio waves; The common one is a wireless router, so the effective range of the radio wave coverage of this wireless router can be connected to the Internet by Wi-Fi connection, if the wireless router is connected to an ADSL line or other Internet lines, it is also called a hot spot.

Wi-Fi products are subjected to rigorous guessing testing by one of the Wi-Fi Alliance's independent authorized testing laboratories, and upon successful testing, the manufacturer or seller is granted the Wi-Fi logo, the Wi-Ficertified logo, and related trademarks, and the Wi-Fi Alliance uses the term "Wi-Ficertified" to refer to such certified products. Certification means that the product is interoperable with other Wi-Ficrified devices operating in the same frequency band.

The wifi network consists of a structure

Generally, the basic equipment of building a wireless network is a wireless network card and an AP, so that the network resources can be shared in wireless mode with the existing wired architecture, and the cost and complexity of the installation are far lower than that of the traditional wired network. If it is only a peer-to-peer network of several computers, you can also do without AP, and only need to equip each computer with a wireless network card.

AP is the abbreviation of AccessPoint, which is generally translated as "wireless access point", or "bridge". It mainly acts as a bridge between wireless workstations and wired LANs in the first access control layer MAC. With APs, wireless workstations can be quickly and easily connected to the network, just like the hub of a typical wired network.

Especially for the use of broadband, Wi-Fi is more advantageous, after the wired broadband network (ADSL, cell LAN, etc.) arrives at home, connect to an AP, and then install a wireless network card in the computer. It is enough for an average family to have an AP, and even after the user's neighbor is authorized, there is no need to add ports, and the Internet can be accessed in a shared way.

Wi-Fi (pronounced: wa fa, French: wifi), also known as "dongzai cha mobile hotspot" in Chinese.

Wi-Fi is a Wi-Fi Alliance manufacturer's trademark as a brand certification of the product, which is a wireless LAN technology created in the IEEE standard. Due to the close relationship between the two systems, Nappi also often uses Wi-Fi as a synonym for IEEE standards. "Wi-Fi" is often written as "WiFi" or "WiFi", but they are not recognized by the Wi-Fi Alliance.

Not every product that matches the IEEE applies for Wi-Fi Alliance certification, and a product that lacks Wi-Fi certification does not necessarily mean that it is not compatible with Wi-Fi devices.

IEEE devices are installed in many products on the market, such as: personal computers, game consoles, ***, smartphones, tablets, printers, laptops, and other peripherals that can be connected wirelessly.

Key features of Wi-Fi

Wireless Internet access can be simply understood as wireless Internet access, almost all smartphones, tablets and laptops support Wi-Fi Internet access, is the most widely used wireless network transmission technology today. If the mobile phone has a Wi-Fi function, when there is a Wi-Fi wireless signal, you can access the Internet without going through the network of China Mobile Unicom, saving traffic fees.

However, the Wi-Fi signal is also provided by the wired network, such as ADSL at home, community broadband, etc., as long as you connect a wireless router, you can convert the wired signal into a Wi-Fi signal. Many cities in developed countries abroad are covered with Wi-Fi signals provided by ** or large companies for residents to use, and there are also many places in China that implement the "wireless city" project to promote this technology.