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Learn about the different types of electrical or optical connectors for carrying audio or video signals, and the physical and data layer parameters they define. Compare analog and digital formats, and see examples of common connectors such as RCA, HDMI, DVI, and USB.
MHL is a standard for connecting mobile devices to HDTVs, audio receivers, and projectors using a special HDMI input or an adapter. It uses a five-pin Micro-USB port and shares the same TMDS technology as HDMI, but with lower bandwidth and power.
Wi-Fi is a family of wireless network protocols based on the IEEE 802.11 standards, used for local area networking and Internet access. Learn about the invention, development, and features of Wi-Fi, as well as its radio bands, speeds, and compatibility.
Bluetooth is a short-range wireless technology that exchanges data between devices over short distances and builds personal area networks. Learn about its origin, development, features, applications, and challenges from this comprehensive article.
HDMI is a proprietary connector for transmitting uncompressed video and compressed or uncompressed audio data from a source device to a compatible display or audio device. Learn about the history, specifications, versions, and features of HDMI, as well as its compatibility with DVI and other standards.
Learn how to access your AOL account if you forget your password or username, and how to update your password regularly. Follow the steps to use Sign-in Helper, AOL Account security page, or AOL mobile apps to manage your password.
Learn about the origin and evolution of headphones, from the first telephone receivers to the modern wireless earbuds. Discover the different types of headphones, such as circumaural, supra-aural, earbuds, and bone conduction, and how they connect to various audio sources.
A wireless network interface controller (WNIC) is a device that connects to a wireless network, such as Wi-Fi, Bluetooth, or LTE. Learn about the modes, specifications, and types of WNICs, and how they differ from wired network interfaces.