Chapter 2 — Computer Output

Output

Anything created with a computer. Allows users to view numbers, characters, pictures, or projected images.

The width of a screen compared to the height of a screen is referred to as:

Aspect Ratio

The number of bits of data describing each pixel in a display is referred to as __________ depth.

Color

The number of bits of data describing each pixel in a display is referred to as:

Color depth

May have a relatively slow refresh rate since it relies on molecular movement.

LCD

How does a laser printer work?

Laser removes electrons from the drum, paper is fed between the drum and the toner, charged toner is attracted to the drum, and toner is melted onto the paper.

The smallest controllable element of an image is called a(n) ___________.

Pixel

Creates image using cells of ionized red, blue, and green gas

Plasma

The term that describes how fast each pixel in a display is updated is:

Refresh rate

Increased data transfer means you should use a __________ USB cord.

Shorter

DVDs and Blu-rays use _________ material to store data.

reflective

Typical aspect ratios for monitors?

16:9 and 4:3

Ultra HD:

3840 x 2160 pixels

Also known as additive manufacturing (AM), ____________ printing sprays successive layers of material to create an object.

3D

Print quality (resolution) is measured in:

Dots per Inch (DPI)

The study of human factors related to things people use.

Ergonomics

Which statements refer to a display's contrast ratio?

In general, the higher the contrast ratio, the better the image quality, describes the difference in brightness, and luminance of white pixels compared to black pixels.

Has the best possible contrast ratio

OLED

Though currently expensive, curved and paper-thin displays are possible using ______________ display technology.

OLED

Devices such as speakers, printers, and external keyboards are examples of:

Peripherals

Items that can be connected to a digital device are referred to as ______

Peripherals

A type of printer that is used to print large graphic images such as architectural drawings by mechanically moving a pen over a large sheet of paper is known as a _____.

Plotter

To convert sound waves into digital signals, each sound wave is ___________.

Sampled

Dot pitch:

The closer the spacing, the sharper the image, a description of the quality of a monitor or television screen, and the distance between two adjointing sub-pixels in a display.

The art and science of creating output that provides information in the most useful manner is called:

ergonomics

DVDs use longer (red spectrum) _______

lasers

Number of times per second a frame in a video is advanced is the definition of frame ________

rate

Frame Rate is:

Number of times per second a frame in a video is advanced.

What type of media are DVDs and Blu-rays?

Optical