Chapter six Output

1. Printers

1.1. • A printer produces text and graphics on a physical medium – Printed information is called a hard copy, or printout – Landscape or portrait orientation

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

1.3. • An ink‐jet printer forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper – Color or black‐and‐white – Printers with a higher dpi (dots per inch) produce a higher quality output

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

1.5. • A thermal printer generates images by pushing electrically heated pins against the heat‐sensitive paper

1.6. • A mobile printer is a small, lightweight, battery‐powered printer that allows a mobile user to print from a mobile device

2. Speakers, Headphones, and Earbuds

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

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

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

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

3. Other Output Devices

3.1. • Other output devices are available for specific uses and applications

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

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

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

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

4. Output Devices for Physically Challenged Users

4.1. • Many accessibility options exist for users with various disabilities

5. What Is Output?

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

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

6. Display Devices

6.1. • A display device visually conveys text, graphics, and video information

6.2. • A monitor is packaged as a separate peripheral – LCD monitor – Widescreen

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

6.4. • Resolution is the number of horizontal and vertical pixels in a display device – A higher resolution uses a greater number of pixels

6.5. • The graphics processing unit (GPU) controls the manipulation and display of graphics on a display device