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2torial #0678:
Learn2 Shop For a Computer Monitor
You've only got one set of eyes...
O.K. folks, let's be open about this: your
computer monitor can be the most
personally-detrimental part of your whole computer
system. No other component has such potential to
damage you (unless you've got the nervous habit of
chewing on power cables). That bright, happy, box
can give you headaches, cause severe eyestrain, and
bombard you with various forms of radiation.
That's why you need to consider your next
monitor about as carefully as you'd consider your
next sweetheart. Your monitor is like your
sweetheart: it can be a bit temperamental, it's
with you much of the day, and it may have a greater
effect on your life than you'd expect.
There are two basic types of monitors widely
available on the market today; the Trinitron
(or aperture grille), and the shadow mask
(see Keywords).
The best shadow masks are called InVar masks
and use a special alloy which resists distortion
much better than traditional shadow masks. Terrific
monitors can be produced using either technology,
but inferior monitors can be produced as well, so
you should shop with care.
When you buy a monitor, you have three major
concerns:
- The sharpness (focus) of the
image,
- The brightness of image
- The consistency of the image as it
spreads from the center of the screen to the
edge.
A good monitor will have more contrast, and
purer colors than an inferior one, and will
maintain those qualities for a longer time. The
screen should be fairly flat as well, to minimize
image distortion. It'll also meet or exceed the
standards for radiation emission and energy usage
developed in countries such as Sweden and the
United States.
Many monitors allow you to adjust the onscreen
image to suit the current computer user. These
adjustments can be accomplished through the use of
digital controls, which most often involve
pushbuttons and onscreen menus; or alternatively,
more traditional dials and switches. These
adjustment controls are highly desirable features:
it's a good idea to familiarize yourself with their
function and understand their ability to improve
the onscreen image.
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