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History. Typewriters are the definitive ancestor of all key-based text entry devices, but the computer keyboard as a device for electromechanical data entry and communication largely comes from the utility of two devices: teleprinters (or teletypes) and keypunches. It was through such devices that modern computer keyboards inherited their layouts.
Identification key. In biology, an identification key, taxonomic key, or biological key is a printed or computer-aided device that aids the identification of biological entities, such as plants, animals, fossils, microorganisms, and pollen grains. Identification keys are also used in many other scientific and technical fields to identify ...
Multiple choice items consist of a stem and several alternative answers. The stem is the opening—a problem to be solved, a question asked, or an incomplete statement to be completed. The options are the possible answers that the examinee can choose from, with the correct answer called the key and the incorrect answers called distractors.
data encryption key (DEK) used to encrypt the underlying data. derived key - keys computed by applying a predetermined hash algorithm or key derivation function to a password or, better, a passphrase. electronic key - (NSA) key that is distributed in electronic (as opposed to paper) form. See EKMS.
Primary key. In the relational model of databases, a primary key is a specific choice of a minimal set of attributes ( columns) that uniquely specify a tuple ( row) in a relation ( table ). [a] [1] Informally, a primary key is "which attributes identify a record," and in simple cases constitute a single attribute: a unique ID.
Terminology science is a branch of linguistics studying special vocabulary. The main objects of terminological studies are special lexical units (or special lexemes ), first of all terms. They are analysed from the point of view of their origin, formal structure, their meanings and also functional features. Terms are used to denote concepts ...
Touch typing (also called blind typing, or touch keyboarding) is a style of typing. Although the phrase refers to typing without using the sense of sight to find the keys—specifically, a touch typist will know their location on the keyboard through muscle memory —the term is often used to refer to a specific form of touch typing that ...
Call: " Shave and a Haircut ", Response: "Two bits". ⓘ. In music, call and response is a compositional technique, often a succession of two distinct phrases that works like a conversation in music. One musician offers a phrase, and a second player answers with a direct commentary or response. The phrases can be vocal, instrumental, or both. [1]