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