You have a customer who has bought his first computer in man

You have a customer who has bought his first computer in many years, including his first LCD monitor. He is having trouble finding and adjusting all of the available settings on the monitor, and you tell him that there are some features and properties of a CRT monitor that are not found on an LCD monitor. Of the following, which features and properties does an LCD monitor not possess?

A. Refresh rate

B. Resolution

C. Multi-monitor

D. Degauss

Solution

Answer: D. Degauss

Explanation:

Cathode ray tube (CRT) monitors are a common type of monitor. The original CRT technology was invented more than 100 years ago and has since been greatly refined. Inside a color CRT, three electron guns shoot streams of electrons at the screen. A mask blocks the electrons so that the beam from one gun hits only red phosphor dots on the screen while the beams from the other guns only hit green or blue phosphors. The three-colored dots are referred to as \"pixels.\" By controlling the position of the beams and how fast they turn on and off, a CRT uses the pixels created to project an image on the screen.

When viewing dark scenes on an LCD TV, it may be difficult to see the finer details in the scene. The perception of this lack of detail may be exaggerated by comparing the display on the LCD TV to that of a CRT (Tube) TV.

This is not an issue with the LCD TV. This is due to a difference between the ways in which LCD and CRT technologies work. The reason you are able to see detail more clearly in dark scenes on a CRT TV than an LCD TV is due to the difference in contrast ratio (the ratio between white and black) -- or, more importantly, how the different technologies make black.

Due to the differences between these two technologies, this allows a CRT to create a much darker black than on an LCD display, which allows there to be greater detail in dark scenes.