Chapter six Output

1. Speakers, Headphones, and Earbuds

1.1. An audio output device produces music, speech, or other sounds

1.2. Headphones are speakers that cover your head or are placed outside of the ear

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

1.4. Some speakers are specifically designed to play audio from a portable media player

1.4.1. Wireless speakers

2. Output Devices for Physically Challenge Users

2.1. Many accessibility options exist for users with various disabilities

3. Summary

3.1. various methods of output

3.2. Several commonry used output devices

3.3. Display devices,printers,speakers headphones, earbuds,data projectors interactive whiteboards, force feedbacks game controllers, an tactile output

4. Other Output Devices

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

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

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

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

5. Objectives Over view

5.1. Describe The type of Outputs

5.2. Explain the characteristics of various display device

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

5.4. Describe various ways to print

5.5. Differenntiate between a nonimpact printer and an impact printer

5.6. Summarize the characteristics of ink-jet printers, photo printers,laser printers label and postage printers,and large format printers

5.7. Describe the uses and characteristics of speakers, headdphones,and earbuds

6. What is output

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

6.2. An output device is any type of hardware component that conveys information to one or more people

7. Printers

7.1. A printer produces text and graphics on a physical medium

7.1.1. Printed information is called a hard copy, or printout

7.1.2. Landscape or portrait orientation

7.2. A nonimpact printer forms characters and graphics on a piece of paper without actually striking the paper

7.3. An ink‐jet printer forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper

7.3.1. Color or black‐and‐white

7.3.2. Printers with a higher dpi (dots per inch) produce a higher quality output

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

7.5. A line printer prints an entire line at a time