The monitor is an electronic output device of the computer in which the images and texts generated by means of a graphic or video adapter of the computer are displayed. The term monitor usually refers to the video screen, and its main and only function is to allow the user to interact with the computer.
A typical computer features a monitor with CRT (cathode ray tube) technology, the same technology used by televisions; however, today there is TFT (thin film transistor) technology that significantly reduces the volume of monitors.
There are also technology LCD (liquid crystal devices), plasma, EL (electroluminescence) or FED (field emission devices); Initially they only appeared on laptops, but now they are included on other computers as well.
In any of these technologies, the displayed image consists of pixels (small dots or image elements). The resolution of a monitor refers to the number of pixels that are displayed in a certain space. The higher the resolution, the wider the monitor will be.
The monitor is also a device or program dedicated to managing information of some kind such as visual or sound data, it is widely used in medicine; For example, when a pregnant woman undergoes an Echosonogram, the monitor shows the image of the fetus and her heartbeat can also be heard.
In the field of education and socio-cultural, the monitor is in charge of guiding and guiding a group of people or students, or teaching a sporting or cultural activity. Its functions are to motivate, mobilize, sensitize people, help to assume responsibilities, discover in individuals: their aspirations, their needs, their hopes, their jobs, etc.
