H.323: An ITU standard for videoconferencing over packet-switched network which is widely supported for Internet telephony.
Hardware: Equipment involved in the production, storage, distribution, and reception of electronic signals, such as computers, amplifiers, cameras, and VCRs.
(HDSL) High Data Rate DSL: A digital subscriber line technology that allows for upstream data transmission at T -1 of fractional T -1 speeds and quality over copper wires.
Headend: Facility that originates and distributes cable service in a given geographic area. Depending on the size of the area it serves, a cable system may be comprised of more than one
(HDTV) High Definition Television: Digital television which offers twice the resolution, widerscreens, better sound, and better color than the NTSC format. “True” HDTV involves a 16:9aspect ratio and at least 720 lines per screen.
(HFC) Hybrid Fiber/Coax: A network architecture developed by the cable industry which uses a blend of fiber and coaxial cable to bring consumers interactivity, greater channel capacity, increased signal strength, and improved reliability.
Home Shopping: Cable and broadcast television programming which allows customers to view and order merchandise at home.
Homes passed: See Businesses Passed. Term typically used by Cable operators to define the actual number of residential homes or a percentage that can be serviced by nearly cable plant. A benchmark by which a Cable companies base revenue opportunity, operations and maintenance expenses, penetration rates and total "size" of system.
Households with the ability receive cable service and which may opt to subscribe.
(HQ) Headquarters: A center of administration or operations.