CH. 5 Computer Output

LCD

(liquid crystal display refers to a type of monitor display - may have slow refresh rate because in relies on molecular movement

Laser printer

- uses toner cartridges - relatively high initial cost

also know as additive manufacturing (AM) ____ printing sprays sucessive layers of material to create an object

3D

The distance between two adjacent sub-pixels on a display is referred to as:

Dot pitch

Printer manufactures often advertise how fast their printers are by using the acronym:

PPM

Increase data transfer means you should use a:

SHORTER USB cord

When you hear music, read a printout, or view a video, you are using a:

computer's output

the number of pixels in display is called the:

display's resolution

using reflective material to store data that can be read using a laser is:

optical media storage

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

peripherals

CPU

(central processing unit) refers to a computer's processor

Aspect ratio notes

- the width of a screen compared to the height of a screen - described as the two numbers seperated by a colon for example: -traditional television or computer monitor= 4:3 -HDTV= 16:9 -Classic 35mm camera film= 3:2

When you get a reciept from a store or a resturant, it's probably printed on:

- thermal paper

HD displays

- typically have 1,080 horizontal lines of pixels -typically have aspects ratios of 16:9

because of their minimal power requirements, most laptops, smartphones, and tablet computers use a(n):

LCD display

Television display with resolutions of at least 3840 x 2160 pixels are referred to as:

UltraHD

ROM

(read-only memory) refers to a type of data storage.

Which of the following are typical aspect ratios for monitors?

- 4:3 - 16:9

Which colors make up typical monitor's pixels?

- Blue - Red - Green

following are true:

- DVDs use longer (red spectrum) lasers - DVDs and Blu-rays are considered optical media

acronyms that describe a type of computer monitor:

- LED -LCD

How a laser printer prints an image

- Laser "removes" electrons from the drum - paper is fed between the drum and the toner - charged toner is attracted to the drum - toner melled onto paper

common printer manufacturers

- Lexmark - Canon - HP - Brother

inkjet printer

- Uses ink cartridges to print - relatively low initial cost

Output

- a spreadsheet printout - playing a song from Spotify - displaying a Youtube video on a screen

LED displays

- extremely energy efficient - great for well- lit areas - can be extremely thin

Dot pitch

- the closer the spacing (the smaller the dot pitch) the sharper the image - a description of the quality of a minitor or television screen - the distance between two adjoining sub-pixels in a display.

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

color depth

the accuracy of a digital recording is determined by the:

sampling rate

the diagonal measure of the visible display is know as:

screen size

characteristics of a plotter:

- prints large graphic drawings - mechanically moves a pen over a large sheet of paper

Input

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

Print quality (resolution) is measured in:

- dots per inch (DPI)

Input Device

- keyboard - mouse - game controller - microphone

OLED

Organic Light Emitting Diode' - has the best possible contrast ratio

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

aspect ratio

using cells of ionized gas to create images, ______ displays are actually becoming less popular

plasma

Contrast ratio

a description of the difference in the luminescence of a display's white pixels compared to the black pixels

Output Device

- speaker - projector - monitor - printer

Thermal printing

- paper turns black when heated - commonly used for printing receipts

factors to consider when buying a speaker

- price - portability - sound quality

Printer manufactures advertise the quality of their products by stating how many__________ they produce.

DPI

Which of the following statements best defines the term "frame rate"?

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

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

refresh rate