Output Devices Overview

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the correct definition of output in computing?

Data that is stored on a device

Data that is unprocessed and raw

Data that has been processed into a useful form (correct)

Data that is used for input purposes

Which of the following is a characteristic of impact printers?

They use thermal technology for printing.

They produce higher quality images compared to ink-jet printers.

They rely on physical contact to create impressions on paper. (correct)

They are typically quieter than nonimpact printers.

What distinguishes a laser printer from an ink-jet printer?

Laser printers are primarily used for photo printing, while ink-jet printers are used for standard documents.

Laser printers use liquid ink, while ink-jet printers use toner.

Laser printers are less expensive than ink-jet printers.

Laser printers operate using a laser beam to format images, while ink-jet printers spray ink onto the paper. (correct)

Which of the following devices is considered a multifunction peripheral?

A scanner, copier, and printer combo Signup and view all the answers

Which type of display device affects the quality of an LCD monitor?

Color depth Signup and view all the answers

What type of printer is characterized by its ability to print high-quality images but often at a slower speed?

Photo printer Signup and view all the answers

What is one of the primary characteristics of speakers used for computer output?

They can vary in quality and sound range. Signup and view all the answers

Which of the following is a primary purpose of data projectors?

To display video and image content on larger screens Signup and view all the answers

What defines the resolution of a display device?

The number of horizontal and vertical pixels Signup and view all the answers

Which output device is primarily known for producing high-quality color prints?

Photo printer Signup and view all the answers

What type of printer forms graphics by striking an inked ribbon?

Impact printer Signup and view all the answers

Which device is best suited for presenting images and text from a computer on a larger screen?

Data projector Signup and view all the answers

Which type of monitor uses gas plasma technology?

Plasma monitor Signup and view all the answers

What feature of an LCD monitor largely affects image clarity?

Dot pitch Signup and view all the answers

Which device can provide tactile output?

Force-feedback game controller Signup and view all the answers

What technology allows photo printing directly from a digital camera?

PictBridge Signup and view all the answers

What distinguishes a multifunction peripheral (MFP)?

It performs multiple functions like printing, scanning, and copying. Signup and view all the answers

What is the primary function of a graphics processing unit (GPU)?

Manipulate and display graphics on a screen Signup and view all the answers

Which type of output device is specifically designed for audio?

Speakers Signup and view all the answers

What typically characterizes a thermal printer?

It uses heat to generate images on heat-sensitive paper. Signup and view all the answers

What type of output device is ideal for producing large format drawings?

Plotter Signup and view all the answers

Study Notes

Output Devices

Output is data processed into a useful format
An output device is hardware that conveys information to people
Display devices visually convey information (text, graphics, video)
Monitors are separate peripherals
- LCD monitors
- Widescreen monitors
Liquid crystal display (LCD) uses a liquid compound to present information
- Active-matrix display
- Passive-matrix display
LCD monitor quality depends on:
- Resolution
- Response time
- Brightness
- Dot pitch
- Contrast ratio
Resolution is the number of horizontal and vertical pixels in a display device
- Higher resolution uses more pixels
Graphics processing unit (GPU) controls manipulation and display of graphics
LCD monitors use a digital signal and need a:
- DVI port
- HDMI port
- DisplayPort
Plasma monitors use gas plasma technology and have screens up to 150 inches
Televisions are output devices and require a converter to connect to an analog TV
- Digital television (DTV) has a higher quality output than analog
- High-Definition Television (HDTV) is an advanced form of digital television
CRT monitors contain a cathode-ray tube and have a large footprint compared to LCD monitors

Printers

Printers produce text and graphics on a physical medium (hard copy or printout)
- Portrait or landscape orientation
Questions to ask when buying a printer:
- Budget
- Printing speed
- Color printing needs?
- Cost per page
- Multiple copies needed?
- Graphics printing?
- Photo printing?
- Memory card printing?
- Paper types/sizes?
- Two-sided printing?
- Paper tray capacity?
- Compatibility with computer and software?
- Supply costs (ink, toner, paper)?
- Envelope printing?
- Printing volume (now and future)?
- Wireless or network connections?
Nonimpact printers form characters/graphics without physically striking the paper
- Ink-jet
- Photo
- Laser
- Thermal
- Mobile
- Label
- Postage
- Plotters
- Large-format
Ink-jet printers spray tiny ink droplets onto paper
- Color or black-and-white
- Higher DPI (dots per inch) printers have higher output quality
Photo printers produce color photo-lab quality pictures (usually ink-jet)
- PictBridge allows direct printing from digital cameras / memory cards
- Built-in LCD previewing
Laser printers are high-speed black-and-white or color printers
Multifunction peripherals (MFPs) are all-in-one devices that print, scan, copy, and sometimes fax
Thermal printers generate images by pushing heated pins against heat-sensitive paper
- Thermal wax-transfer printers
- Dye-sublimation printers
Mobile printers are small, lightweight, battery-powered printers for use with mobile devices
Label printers print on adhesive material
Postage printers print postage stamps
Plotters produce high-quality drawings
Large-format printers create photo-realistic prints on larger scales
Impact printers form characters/graphics by striking a mechanism against an inked ribbon
- Dot-matrix printers
- Line printers

Other Output Devices

Data projectors display computer screen images on a larger screen
- LCD projectors
- DLP projectors
Interactive whiteboards are touch-sensitive devices, resembling dry-erase boards
Force-feedback game controllers deliver resistance/feedback to the user
Tactile output provides physical responses from the device

Accessibility Options for Physical Challenges

Many accessibility options exist for users with various disabilities

Summary

Various output methods exist.
Common output devices include: Display devices, printers, speakers, headphones, earbuds, data projectors, interactive whiteboards, force-feedback controllers and tactile output.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Explore the various types of output devices, focusing on LCD and plasma monitors. Learn about key specifications like resolution, response time, and graphics processing units (GPUs) that enhance display quality. This quiz will help solidify your understanding of how information is conveyed visually through different hardware.