Search results
Results From The WOW.Com Content Network
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.
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.
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.
In such cases, the numpad-specific key may be indicated as e.g. Numpad 0, NumPad0, Num 0, or likewise to remove ambiguity. Numeric keypads usually operate in two modes. When Num Lock is off, keys 8 , 6 , 2 , and 4 act like arrow/navigation keys up, right, down, and left; and 7 , 9 , 3 , and 1 act like Home , PgUp , PgDn , and End , respectively.
The algorithm described by AES is a symmetric-key algorithm, meaning the same key is used for both encrypting and decrypting the data. In the United States, AES was announced by the NIST as U.S. FIPS PUB 197 (FIPS 197) on November 26, 2001.
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.
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]
Turnkey refers to something that is ready for immediate use, generally used in the sale or supply of goods or services. The word is a reference to the fact that the customer, upon receiving the product, just needs to turn the ignition key to make it operational, or that the key just needs to be turned over to the customer. [3]
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 ...
A product key, also known as a software key, serial key or activation key, is a specific software-based key for a computer program. It certifies that the copy of the program is original. Product keys consist of a series of numbers and/or letters.