How To Monitor.

How To Monitor.

A few years ago, color monitors for personal computers were considered a luxury - most appropriate for games
than for the job itself. Most programs was based on text mode and text displayed on color monitors
was of poor quality and difficult to read. Even for graphics applications, monitors color graphics (CGA),
who were the first to appear for DOS based computers, had serious difficulties in showing only
four colors of the 16 colors available in its highest resolution - a resolution full of zigzags in place
mild curves and lines defined.

Today, the reality is another. Not only the color is considered acceptable for the work computer, as I became
required in this field due to the use of environments such as Windows or OS / 2, requiring more of the graphics. The
Programs currently used to color not only to make them more attractive, but to add greater amounts of
Information.

Color monitors are far more recent colors and resolutions arid models of the past decade. In ten of the
four colors now have a palette of at least 256 colors and some even thousands of colors. In place of the old
CGA resolution of 200 lines by 640 columns of pixels, most modern monitors have a resolution of 768 lines per 1,024
columns of pixels, effortlessly. (A pixel, short for picture element, or component screen, is the smallest unit
logic that can be used to construct an image inch screen. A single pixel is normally formed by grouping
several points of light (dot). The smaller the dots used to create a pixel, the better the resolution of the monitor.)

The secret of the best monitors currently found is the combination of VGA video adapter (Variable Graphics Array)
with versatile monitors that can operate with a variety of signals from the video card. The oldest video cards
used exclusively digital information that informed it was a pixel on or off, making it difficult to distinguish
between shades of color. The VGA utilizes an analog signal converts the digital information into different levels
voltage varying the intensity of a pixel. The process requires less memory and is more versatile. Super VGA monitors
use a set of special chips and more memory to further increase the number of colors and resolution.

In the coming years, some type of VGA monitor will become standard. We'll look at two types of VGA monitors colorful -
the desktop display and liquid crystal display of the notebook computers.

Source: Evolution of Computers