Wireless

Wireless describes any technology that sends data without a physical cable. In computing, the term usually refers to a device's ability to connect to networks, accessories, or other hardware without wires.

The most common wireless technologies used by computer and mobile devices today include:

• Wi-Fi - Used for wireless networking and Internet access. Computers, tablets, and smartphones connect to wireless routers or access points using Wi-Fi standards such as 802.11ac and Wi-Fi 6.
• Bluetooth - Supports short-range connections between nearby devices, including keyboards, mice, headphones, speakers, and smartwatches.
• Cellular - Uses 4G or 5G mobile networks to provide Internet access when Wi-Fi is unavailable. Standard in smartphones, but also available in some tablets and laptops.
• NFC - Short for Near Field Communication, NFC enables ultra-short-range wireless connections for contactless payments, quick pairing, and device authentication.
• Infrared - Found in some remote controls and specialized devices that transmit signals using infrared light.

Some wireless devices use proprietary radio technologies, such as USB receivers for wireless keyboards, mice, and gaming accessories. Since wireless standards are not always compatible, it is important to verify that a device supports the same wireless technology as your computer or mobile device.