Digital Glossary

A headland is a point of land, usually high and often with a sheer drop, that extends out into a body of water.

Hertz (abbreviated: Hz) is the standard unit of measurement used for measuring frequency. Since frequency is measured in cycles per second, one hertz equals one cycle per second.

High-definition video (HD video) is video of higher resolution and quality than standard-definition. While there is no standardized meaning for high-definition, generally any video image with considerably more than 480 vertical lines (North America) or 576 vertical lines (Europe) is considered high-definition. Four hundred and eighty scan lines is generally the minimum even though the majority of systems greatly exceed that. Images of standard resolution captured at rates faster than normal (60 frames/second North America, 50 fps Europe), by a high-speed camera may be considered high-definition in some contexts. Some television series shot on high-definition video are made to look as if they have been shot on film, a technique which is often known as filmizing.

High-resolution audio (High-definition audio or HD audio) is a technical and marketing term for audio with greater than 44.1 kHz sample rate or higher than 16-bit audio bit depth. It commonly refers to 96 kHz or 192 kHz sample rates, producing a Nyquist frequency of 48 kHz or more. However, there also exist 44.1 kHz/24-bit, 48 kHz/24-bit and 88.2 kHz/24-bit recordings that are labeled HD Audio. Research into high resolution audio began in the late 1980s and high resolution audio content started to become available on the consumer market in 1996.

Hip Hop Republican is a combined music and politics blog that started in 2004 by Richard Ivory. Ivory says that he started the blog in part because of frustration with the belief that blacks must be Democrats. The blog was credited with giving conservative blacks a sense of community during the 2008 presidential election when they were often expected to vote in solidarity with Barack Obama.The blog has since expanded to feature many other commentators alongside Ivory, including Lenny McAllister and Shirley Husar. The term 'Hip-Hop Republican' as popularized by the blog has become an identity for some young black Republicans.

The term Honours degree has different meanings for different degrees. Most commonly it is an award in connection with undergraduate Bachelor's degree variations.

Stands for 'HyperText Transport Protocol Secure.' HTTPS is the same thing as HTTP, but uses a secure socket layer (SSL) for security purposes. Some examples of sites that use HTTPS include banking and investment websites, ecommerce websites, and most websites that require you to log in.Websites that use the standard HTTP protocol transmit and receive data in an unsecured manner. This means it is possible for someone to eavesdrop on the data being transferred between the user and the Web server.

Human rights defenders or human rights activists are people who, individually or with others, act to promote or protect human rights. They can be journalists, environmentalists, whistle-blowers, trade unionists, lawyers, teachers, housing campaigners, and so on. They can defend rights as part of their jobs or in a voluntary capacity. As a result of their activities, they can sometimes be the subject of reprisals and attacks of all kinds, including smears, surveillance, harassment, false charges, arbitrary detention, restrictions on the right to freedom of association, and physical attacks.

Hyper-threading is a technology developed by Intel Corporation. Hyper-threading allows two streams to be executed in parallel, it is almost like having two separate processors working together.