HISTORY MONITOR

In the early generation of computers, not using special monitors like this now. Computer time was connected with the TV family as the viewer screen of data processing performed. Which is mainly a problem tends to that resolution TV monitor is only capable of displaying 40 characters on the screen horizontally. Special monitors for computers issued by the IBM PC, which initially has a resolution of 80 X 25 with the ability of the color "green monochrome." This monitor capable of displaying the results of a brighter, clearer and more stable. In addition, with the introduction of a standard VGA monitor, a graphical display of a Personal Computer becomes real. VGA and the generation that succeeded afterwards such as PGA, XGA, or SVGA is a standard analog video signals R (Red), G (Green) and B (Blue) with continuous and constant voltage range coloration. In principle, an analog monitor allows the use of full color with high intensity.

Monitor the latest generation of LCD technology are no longer using electron tube CRT but using a type of liquid crystal light that can. This technology produces monitors known as the Flat Panel Display with flat screen and high resolution capabilities.

a. Green Monochrome

A monochrome monitor is a type of CRT computer screens that are very common in the early days of computing, from 1960 until the 1980's, before the color monitors became popular. They are still widely used in applications such as computerized cash registers systems.Green screen is the common name for monochrome monitors use the green "P1" phosphor screen. Abundant in the early-to-mid-1980s, they had preceded the terminal teletype and CRT color as the dominant visual output device for computers

b. Cathode Ray Tube

On CRT monitors, the viewer screen using cathode ray tubes. This technology increases the display on the monitor by way of emitting an electron beam to a spot on the screen. Ray will be strengthened to show the brighter side and fell to the dark side. CRT technology is the cheapest technology compared with the two other technologies. However, the resulting resolution is good enough for various purposes. Only the electrical energy required just big enough and have a strong enough electromagnetic radiation.

c. Liquid Crystal Display

LCD monitors are no longer using electron tubes, but using a type of liquid crystal light that can. This technology produces monitors known as the Flat Panel Display with flat screen, and the ability of higher resolution than the CRT. Because of the flat, flat type monitor uses a small energy and are widely used in portable computers another advantage of the LCD monitor is the brightness ratio that has touched the figure 350: 1. brigtness ratio is the ratio between the darkest display with a brilliant display.
Liquid Crystal Display uses liquid crystals to glow. Liquid crystals are organic molecules that flow like a viscous liquid, but has a spatial structure such as crystal. (Found in Botany expert Austria - Rjeinitzer) in 1888. By shining light through liquid crystals, the intensity of light that comes out can be controlled electrically to form a flat panel. Layer in an LCD:
• Polaroid
• Plate glass rear behind the back
• Electrode Liquid Crystal
• Plate glass front
• front
• front Polaroid Electrodes
Electrodes in the function layer is to create an electric field on liquid crystals, while Polaroid is used to create polarization. In terms of price, the LCD monitor is much more expensive when compared to CRT monitors. And he still has some disadvantages such as less able to be used to work in various resolutions, such as a monitor with a resolution of 1024 X 768 will look a bit blurred when employed at a resolution of 640 X 420. Tatapi lately tersbut weakness has begun to be resolved with anti-aliasing techniques.

d. Plasma Gas

Monitors of this type incorporate CRT technology with LCD. With the resulting technology, capable of making the screen with the thinness such as LCD and wide viewing angle for the CRT. Plasma gas is also used phosphorus as well as on CRT technology, but the display on the plasma gas can perpendar unaided light behind the screen. This will make the energy absorbed is not for CRT monitors. The resulting color contrast would be better than LCD. Gas plasma technology often can we meet in music performance or sports game is spectacular. There are giant screens installed at the corners of a particular arena. That is a monitor that uses plasma gas technology.