What is a monitor?

Monitor ( information processing system), in computing machine science, device connected to a computer that displays information on a screen. Modern computer supervises tin display a wide variety of information, including text, icons (pictures representing commands), photographs, computer rendered graphics, video, and animation.

Most computer monitors use a cathode-ray tube (CRT) as the display device. A CRT is a glass tube that is squeeze at integrity end and opens to a flat screen at the opposite end. The CRTs used for monitors have rectangular screens, but other types of CRTs may have circular or square screens. The narrow end of the CRT contains a single electron hero sandwich for a monochrome, or single- gloss monitor, and tercet electron guns for a illusion monitor-- single electron gun for each of the three primary colourize: red, green, and yellow. The display screen is covered with tiny phosphor dots that emit empty-headed when struck by electrons from an electron gun.

Monochrome monitors have only one type of phosphor dot while color monitors have three types of phosphor dots, each emitting either red, green, or blue light. One red, one green, and one blue phosphor dot are grouped together into a single unit called a picture element, or pixel. A pixel is the littleest unit that can be displayed on the screen.



Pixels are arranged together in rows and columns and are small enough that they appear connected and continuous to the eye.

Electronic circuitry within the monitor controls an electromagnet that scans and focuses electron beams onto the display screen, illuminating the pixels. Image intensity is controlled by the number of electrons that touch a particular pixel. The more electrons that hit a pixel, the more light the pixel emits. The pixels, illuminated by each pass of the beams, create images on the screen. Variety of color and shading in...

If you want to get a full essay, determine it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper