Module 6 Notes

Plasma

A type of display that creates an image by illuminating millions of microscope tubes of ionized gas is a ____ screen

Plotter

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 ___ .

3D

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

Projector

An output device that uses light to display video or image output on a surface is called a ___ .

LCD

Because of their minimal power requirements, most laptops, smartphones, and tablet computers use an _________ display.

Headphones

Because of their slim profiles, most smartphone speakers produce tinny music. because of this many users purchase earbuds or ____ to listen to their music

led

By efficiently turning electrons into photons (light) __________ displays can provide very bright screens with very little energy.

- HP - Canon - Lexmark - Brother

Common printer manufacturers

LCD

Contrast ratio is not as great as competing technologies

OLED

Costs approximately 5x more than competing display technologies

Shorter

Increased data transfer means you should use a ___ USB cord

- Relatively Low Initial Cost - Uses ink cartridges

Inkjet Printer

- Putting a video from your phone onto your computer - Entering text in a word processing program - Recording a song using MIDI

Input

Peripherals

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

- Relatively High Initial Cost - Uses toner cartridges

Laser Printer

Plasma

Limited brightness may be a factor in a well-lit room

- Extremely energy efficient - Great for well lit areas - Can be extremely thin

Select true statements regarding an LED display

8K

Television displays with resolutions of at least 3840 x 2160 pixels are referred to as _____ HD.

Screen Size

The diagonal measure of the visible display is known as _____

Color Depth

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

Thermal

When you get a receipt from a store or restaurant, its probably printed on ________ paper.

LCD

Which acronym refers to a type of computer monitor?

- Describes how fast each pixel in a display is updated - The higher the fresh rate, the smoother the video - Video play best with refresh rates at even multiples of the frame rate

Which are true regarding a display's refresh rate?

- In general, the higher the contrast ratio, the better the image quality - Describes the difference in brightness - Luminance of white pixels compared to black pixels

Which statements refers to a display's contrast ratio?

Output

Printers speakers and monitors are examples of _____ devices

Resolution

The number of pixels in a display is called the display's ___

Optical

DVDs, Blu-rays, and CDs are examples of ____ media storage

1. Laser removes electrons from the drum 2. Paper is fed between the drum and toner 3. Charged toner is attached to the drum 4. Toner is melted onto the paper

List the steps taken a laser printer prints out an image

Organic Light Emitting Diode

OLED stands for

- LCD - LED

Select the acronyms that describe a type of computer monitor

Dot

The distance between two adjacent sub-pixels on a display is referred to as _______ pitch.

HDMI

The port that allowed the transfer of high quality video and audio signals and is the standard for television input is called a ____ port

Pixel

The smallest controllable element of an image is called a _____

Plasma

This type of display creates images with pixels made of red, green, and blue cells filled with ionized gas.

OLED

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

Sampled

To convert sound waves into digital signals each sound wave is

Toner

To create an image with a laser printer ____ is(are) drawn to the drum

1) typically have aspect ratios of 16:9 2) typically have 1,080 horizontal lines of pixels

Which of the following are true regarding high definition displays

- DVD's use longer red spectrum lasers - DVD's and Blu-Rays are considered optical media

Which of the following statements are true?

Contrast Ratio

A description of the difference in the luminance of a display's white pixels compared to the black pixels is called ___ .

Dots per Inch

Print Quality Resolution is measured in

Larger

Lower range tones generally require ___ speakers.

Frame Rate

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

- Use red, green, and blue LEDs to create each pixel - Currently more expensive to produce than LCD screens - Capable of creating curved and extremely thin displays

Select the characteristics of OLED technology

Ergonomics

The study of human factors related to things people use is:

Refresh

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

Aspect Ratio

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

- Equals the number of pixels in a display - A measure of image quality - Shown as width x height in pixels

Which are true regarding a screens resolution?

- Also known as bit depth - Specifically, the number of bits of data describing each pixels in a display - A measure of the accuracy of the color in each pixel

Which are true regarding color depth?

- A spreadsheet printout - Displaying a YouTube video on a TV screen - Playing a song from Spotify

Output