glossary H

The term harvest may refer to the following:

• the process of gathering mature crops from fields
• IBM 7950 Harvest, a one-of-a-kind adjunct to the NSA's IBM 7030 Stretch supercomputer
• Harvest project, a web cache research project
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The term handheld refers to any object that is designed to be light and small enough to be held and/or operated with one or both hands.

Harpsichord (in Italian cembalo; and in French clavecin) is defined as a stringed keyboard instrument in which the strings are plucked to produce sound.

Anchor (or hook) is described as a metal device that is lowered from the boat on rope or chain (anchor rode) and that digs into or lies on the water's bottom and so holds the boat. To set the anchor is to help it dig in by pulling hard on the rode.

A Headphone is described as an electromagnetic transducer designed to be worn on the human head for the purpose of audio listening/monitoring, and as distinct from an earphone, or system worn in the ear. Headphones (plural) would be a pair - one for each ear. They are usually based on the principle of electromagnetic induction used to convert the electrical energy output of a headphone amplifier into acoustic energy, or sound.

Harvesting is described as the process of threshing or picking a grain crop by a large machine called a combine. It can also refer to picking vegetable and fruit crops by hand.

Hammer is described as an instrument for driving nails, beating metals, and the like, consisting of a head, usually of steel or iron, fixed crosswise to a handle. The hammer usually has a curved claw used to extract nails.

Height computer is characterized as a calculating device for converting indicated to true height by taking the density factor into consideration.