Chapter 4

When approaching an older LCD panel from the side, you don't realize there is actually an image displayed on it until you are almost in front of it. Which options might explain why you could not detect the image from the side?

-the user has privacy filter in place -it's a passive-matrix LCD panel (Older LCD panels might have employed passive-matrix addressing for their pixels, resulting in a poorer viewing angle than that created by active-matrix LCD panels)

Which of the following resolutions is an example of a 16:10 aspect ratio?

1920 x 1200 16:10 is an aspect ratio mostly used for computer displays and tablet computers. It is also known as 8:5. 1920 x 1200 is a common screen resolution with the 16:10 aspect ratio.

What does a Q in video resolution names, such as QXGA, refer to?

Both the horizontal and vertical components of the resolution have been doubled. Although the Q stands for quad, the pixel count for each axis is only doubled, resulting in four times as many total pixels.

Which of the following is possible to do with multimonitor settings?

Display different parts of your Desktop on different monitor he multimonitor feature allows two monitors to display exactly the same thing or to extend your Desktop onto the second monitor.

Which of the following is the measure of how many unique screens of content were recorded per second?

Frame rate Also known as frame frequency

Which of the following would be the best choice as a personal display technology if a user wants to save desk space and not have to deal with interference from nearby speakers?

LCD

Which of the following have been common methods to backlight an LCD monitor?

LEDs florescent bulbs

What is the single, fixed resolution of an LCD called?

Native resolution The native resolution comes from the placement of the transistors in the hardware display matrix of the monitor. One of the peculiarities of LCD, plasma, OLED, and other flat-panel displays is that they have a single fixed resolution, known as the native resolution.

Which of the following describes a difference between refresh rate and frame rate?

Refresh rate can be higher than frame rate, in terms of screens of information displayed per second, when considered for any given video output. The refresh rate is the vertical scan frequency, and it specifies how many times in one second the image on the screen can be completely redrawn. The frame rate is the measure of how many unique screens of content were recorded per second.

Which video technology has a resolution of 1280 × 1024?

SXGA SXGA has a resolution of 1280 × 1024. Consult Table 4.2 for the resolutions that characterize other technologies.

If you are unable to display a given resolution on a monitor, which of the following might explain why?

The graphics adapter does not have enough memory installed. The amount of memory installed on a graphics adapter is directly related to how many pixels can be displayed at one time and how many colors the pixels can be set to.

What is contrast ratio?

The ratio of the luminance of the brightest color to that of the darkest color The contrast ratio is a measure of a display system, defined as the ratio of the luminance of the brightest color (white) to that of the darkest color (black) that the system is capable of producing.

What might cause your display to appear in a resolution of 640×480?

You have booted into Safe Mode Safe Mode disables as many nonessential drivers and services as possible. One of the nonessential drivers it disables is the graphics adapter driver.

Which of the following results can occur with improper display settings?

You might have to scroll to see parts of the Desktop.

Which of the following types of LCD has the best performance characteristics?

active matrix

Which of the following is true regarding a monitor's refresh rate

as you lower the resolution, the maximum refresh rate allowed tends to increase

What is the unit of measure used by manufacturers of projectors to indicate the brightness of their product?

lumens -> unit of measure for the total amount of visible ligt that the projector gives off, based solely on what the human eye can perceive.

Which of the following display types physically creates the image displayed in a manner most similar to OLED displays?

plasma

Which statement about LCD monitors is most accurate?

those based on TN technology are preferred by gamers (less expensive and offer better response time for the money, TN suffers from color shifts when viewed from wide angels )

When you're in a hurry to pack everything up and head to the airport after a presentation using a video projector, which of the following should you avoid doing immediately?

unplugging the projector's power