Computer monitor
Computer Monitor
A Computer Monitor (pronounced: /kəmˈpjuːtər ˈmɒnɪtər/) is an output device that displays information in pictorial form. A monitor usually comprises the visual display, circuitry, casing, and power supply. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) with LED backlighting having replaced cold-cathode fluorescent lamp (CCFL) backlighting.
Etymology
The term "monitor" is from the Latin monere, meaning "to warn, advise, or remind". It was first used in English in the mid 16th century to refer to a person who admonishes, hence a person who oversees or instructs. The use of the term in the context of computing equipment dates back to at least 1950.
Related Terms
- Liquid Crystal Display (LCD): A type of display used in digital watches and many portable computers. LCD displays utilize two sheets of polarizing material with a liquid crystal solution between them.
- Light Emitting Diodes (LED): A semiconductor light source that emits light when current flows through it.
- Thin Film Transistor (TFT): A type of LCD flat-panel display screen, in which each pixel is controlled by from one to four transistors.
- Cold-Cathode Fluorescent Lamp (CCFL): A type of body usually used as long-lasting, energy-efficient light sources for electronic devices like computers and televisions.
- Circuitry: A detailed plan or arrangement of an electric circuit.
- Power Supply: An electrical device that supplies electric power to an electrical load.
External links
- Medical encyclopedia article on Computer monitor
- Wikipedia's article - Computer monitor
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