 Adapter) Used to connect Ethernet switches to networks running Fibre Channel protocols. See also Fibre Channel protocol. HDTV (High-Definition Television) A standard for digital high-resolution television video and surround sound audio. headend The control center of a cable television system where incoming video signals are received and converted into a format compatible for transmission to subscribers and combined with other signals onto the cable operator's fiber infrastructure. home page The default first page of an Internet web site. A home page is analogous to the first page and table of contents of a book. hotspot A public area where people with Wi-Fi equipped laptops or personal digital assistants can access the Internet. Access might be free or available for monthly or daily rates. HTML5 (Hypertext Markup Language 5) A language for structuring browsers and web sites. The World Wide Web Consortium (W3C) specifies the standard. Its goal is to make browsing the Web from mobile devices faster, particularly for accessing video and other applications directly from browsers without using specialized plug-in languages. Apple uses it on its mobile devices in competition with the proprietary Adobe Flash. www.TechnicalPDF.com HTTP (HyperText Transfer Protocol) The protocol used to link Internet sites to one another. For example, HTTP provides links to servers containing text, graphical images, and videos. Prior to the use of switches on LANs, each device (such as a computer or printer) was wired to the hub, generally located in the wiring closet. Hubs enabled LANs to use twisted-pair cabling rather than more expensive, harder- to-install and move coaxial cabling. Hubs are sometimes referred to as concentrators. In wide area network architectures, the hub is the headquarters, the central site, in the network of connected locations. hyper convergence Software to simplify data center architecture by tightly integrating computing devices, storage, network, and virtualization. hypervisor Software that monitors and super