Output

1. What Is Output?

1.1. Output is data that has been processed into a useful form

1.2. An output deviceis any type of hardware component that conveys information to one or more people

2. Display Devices

2.1. A display devicevisually conveys text, graphics, and video information

2.2. A monitoris packaged as a separate peripheral

2.2.1. LCD monitor

2.2.1.1. Liquid crystal display (LCD) uses a liquid compound to present information on a display device

2.2.1.1.1. Resolutionis the number of horizontal and vertical pixels in a display device – A higher resolution uses a greater number of pixels

2.2.2. Widescreen

2.2.3. Plasma monitorsare display devices that use gas plasma technology and offer screen sizes up to 150 inches

3. Other Output Devices

3.1. A data projector is a device that takes the text and images displaying on a computer screen and projects them on a larger screen

3.2. An interactive whiteboard is a touch‐sensitive device, resembling a dry‐erase board, that displays the image on a connected computer screen

3.3. Force‐feedback sends resistance to the device in response to actions of the user

3.4. Tactile output provides the user with a physical response from the device

4. Objectives Overview

4.1. Describe the types of output

4.2. Explain the characteristics of various display devices

4.3. Describe the factors that affect the quality of an LCD monitor or LCD screen

4.4. Describe various ways to print

4.5. Differentiate between a nonimpact printer and an impact printer

4.6. Summarize the characteristics of ink‐jet printers, photo printers, laser printers, multifunction peripherals, thermal printers, mobile printers, label and postage printers, and plotters and large‐format printers

4.7. Describe the uses and characteristics of speakers, headphones, and earbuds

5. Printers

5.1. A printerproduces text and graphics on a physical medium

5.2. A nonimpact printerforms characters and graphics on a piece of paper without actually striking the paper

5.2.1. An ink‐jet printerforms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper

5.2.2. A photo printerproduces color photo‐lab‐quality pictures

5.2.3. Laser printer

5.2.4. A multifunction peripheral(MFP) is a single device that prints, scans, copies, and in some cases, faxes

5.2.5. A thermal printergenerates images by pushing electrically heated pins against the heat‐sensitive paper

5.2.6. A mobile printeris a small, lightweight, battery‐powered printer that allows a mobile user to print from a mobile device

5.2.7. A label printeris a small printer that prints on adhesive‐type material

5.2.8. Plottersare used to produce high‐quality drawings

5.2.9. Large‐format printerscreate photo‐realistic quality color prints on a larger scale

5.2.10. New node

5.3. Impact printersform characters and graphics on a piece of paper by striking a mechanism against an inked ribbon that physically contacts the paper

5.3.1. A dot‐matrix printerproduces printed images when tiny wire pins on a print head mechanism strike an inked ribbon

5.3.2. A line printerprints an entire line at a time

6. Speakers, Headphones, and Earbuds

6.1. An audio output deviceproduces music, speech, or other sounds

6.2. Most computer users attach speakersto their computers to:•Generate higher‐quality sounds for playing games•Interact with multimedia presentations•Listen to music•View movies

6.3. Earbuds(also called earphones) rest inside the ear canal

6.4. • Headphonesare speakers that cover your head or are placed outside of the ear

6.5. Some speakers are specifically designed to play audio from a portable media player – Wireless speakers