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Chapter 6 Output

Chapter 6 Output. Chapter 6 Objectives. Next. Describe the four categories of output. Differentiate between a nonimpact printer and an impact printer. Summarize the characteristics of LCD monitors, LCD screens, and plasma monitors.

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Chapter 6 Output

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  1. Chapter 6Output

  2. Chapter 6 Objectives Next Describe the four categories of output Differentiate between a nonimpact printer and an impact printer Summarize the characteristics of LCD monitors, LCD screens, and plasma monitors Summarize the characteristics of ink-jet printers, photo printers, laser printers, thermal printers, mobile printers, label and postage printers,and plotters and large-format printers Describe the characteristics of a CRT monitor and factors that affect its quality Describe the uses of speakers, headphones,and earphones Explain the relationship between graphics chips and monitors Identify the output characteristics of fax machines and fax modems, multifunction peripherals, data projectors, joysticks, wheels, and gamepads Describe various ways to print Identify output options for physicallychallenged users

  3. What is Output? Next What isoutput? • Data that has been processed into a useful form • Output device is any hardware component that can convey information to one or more people p. 300 - 301 Fig. 6-1

  4. Display Devices Next What is adisplay device? • Output device that visually conveys text, graphics, and video information • Information on display device sometimes called soft copy p. 302

  5. Display Devices Next What is an LCD monitor? • Uses liquid crystal display • Have a small footprint • Mobile devices that contain LCD displays include • Notebook computer, Tablet PC, ultra personal computer, portable media player, smart phone, and PDA p. 302 - 303 Fig. 6-2

  6. Flat-Panel Displays Next What about using multiple LCD monitors? • Some users position two or more monitors side-by-side or stacked • Allows users to run multiple applications simultaneously p. 303 Fig. 6-3

  7. Flat-Panel Displays Click to view Web Link,click Chapter 6, Click Web Linkfrom left navigation, then click LCD Technology below Chapter 6 Next What are some mobile devices that have LCD screens? p. 303 Fig. 6-4

  8. Flat-Panel Displays CLICK TO START Next Video: SID: Size Matters

  9. Flat-Panel Displays Next What isresolution? • Number of horizontal and vertical pixels in a display device • Sharpness and clarity of image • Higher resolution makes image sharper, displays more text on screen, makes some elements smaller p. 304 - 305 Fig. 6-5

  10. Display Resolution 1280 x 1024maximum resolution of most monitors 2048 x 1536maximum for high-end monitors 800 x 600typically the standard 800 horizontal pixels 600 vertical pixels Total of 480,000 pixels on screen

  11. Flat-Panel Displays Click to view Web Link,click Chapter 6, Click Web Linkfrom left navigation, then click Video Cardsbelow Chapter 6 Next How do you use an LCD monitor with a video card? • Plug monitor intoDigital Video Interface (DVI)porton computer standard monitorport S-video port DVI port p. 306 Fig. 6-6

  12. Flat-Panel Displays Next What is aplasma monitor? • Displays image by applying voltage to layer of gas • Larger screen size and richer colors than LCD, but are more expensive p. 307 Fig. 6-8

  13. Flat-Panel Displays Next What isdigital television (DTV) andhigh-definition television (HDTV)? High resolution All broadcast stationstransmit digital signals Many programs can bebroadcast on a singledigital channel Uses digital signals to producecrisper, higher-quality outputon LCD and plasma televisions HDTV (high-definition television)is the most advanced formof digital TV Great for game playing, watching movies, and browsing the Internet p. 307

  14. CRT Monitors Next What is aCRT monitor? • Containscathode-ray tube (CRT) • Screen coated with tiny dots of phosphor material • Each dot consists of a red, blue, and green phosphor • Common sizes are 15, 17, 19, 21, and 22 inches • Viewable size is diagonal measurement of actual viewing area p. 308 Fig. 6-10

  15. CRT Monitors What is dot pitch? • Space between pixels

  16. Display Devices Step 1 Step 1 Step 1 Step 1 Step 1 Step 1 Step 2 Step 2 Step 2 Step 2 Step 2 Step 3 Step 3 Step 3 Step 3 Step 4 Step 4 Step 4 Step 5 Step 5 Step 6 Step 1: The processor sends digital video data to the video card. Step 2: The video card’s digital-to-analog converter (DAC) converts the digital video data to an analog signal. Step 3: The analog signal is sent thought a cable to the CRT monitor. Step 4: The CRT monitor separates the analog signal into red, green, and blue signals. Step 5: Electron guns fire the three color signals to the front of the CRT. Step 6: An image displays on the screen when the electrons hit phosphor dots on the back of the screen.

  17. CRT Monitors Next What determines the quality of a CRT monitor? • Screen resolution • Text created with a smaller dot pitch is easierto read • Refresh rate is speed at which monitor redrawsimages on screen p. 309

  18. CRT Monitors Next What is theENERGY STAR program? • Encourages manufacturers to create energy-efficient devices that require little power when not in use • Monitors and devices meeting guidelines display ENERGY STAR label p. 308

  19. Display Device Purchasing Decisions • Display Technology (CRT or LCD) • Cable Technology (VGA and DVI) • Viewable Area (Measured Diagonally) • Aspect ratio (ratio of width to height) and orientation (Landscape or Portrait) • Maximum Resolution • Refresh Rate – how frequently the display is refreshed. • The higher the better. • Color Depth - number of bits to describe a pixel. • Power Consumption • CRT: Dot Pitch – space between pixels. • LCD: Response Time – time it takes to turn a pixel on/off.

  20. Printers portrait landscape Next What is aprinter? • Output device that produces text and graphics on a physical medium • Result ishard copy, orprintout • Two orientations:portraitandlandscape p. 310 Fig. 6-11

  21. Printers Click to view Web Link,click Chapter 6, Click Web Linkfrom left navigation, then click Printing Digital Camera Images below Chapter 6 Next What are the various ways to print documents and pictures? p. 311 Fig. 6-13

  22. Printers Next What is anonimpact printer? • Forms characters and graphics without striking paper • Ink-jet printersprays tiny drops of liquid ink onto paper • Prints in black-and-white or color on a variety of paper types p. 312 Fig. 6-14

  23. Printers 300 dpi 600 dpi 1200 dpi Next What is theresolutionof a printer? • Sharpness and clarity • Measured by number ofdots per inch (dpi)printercan output p. 313 Fig. 6-15

  24. Printers print head print cartridge firing chamber ink dot bubble resistor ink nozzle Click to view Web Link,click Chapter 6, Click Web Linkfrom left navigation, then click Ink-Jet Printersbelow Chapter 6 Next How does an ink-jet printer work? Step 1.A small resistor heats the ink, causing the ink to boil and form a vapor bubble. Step 2.The vapor bubble forces the ink through the nozzle. Step 3.Ink drops onto the paper. Step 4.As the vapor bubble collapses, fresh ink is drawn into the firing chamber. p. 313 Fig. 6-16

  25. Printers Click to view Web Link,click Chapter 6, Click Web Link from left navigation, then click PictBridge below Chapter 6 Next What is aphoto printer? • Color printer that produces photo-lab-quality pictures • Many photo printers have a built-in card slot • PictBridge is a standard technology that allows you to print pictures directly from a digital camera p. 314 - 315 Fig. 6-17

  26. Printers Next What is alaser printer? • High-speed, high-quality nonimpact printer • Prints text and graphics in high-quality resolution, ranging from 1,200 to 2,400 dpi • Typically costs more than ink-jet printer, but is much faster p. 315 Fig. 6-18

  27. Printers Click to view Web Link,click Chapter 6, Click Web Link from left navigation, then click Laser Printersbelow Chapter 6 Next How does a laser printer work? p. 316 Fig. 6-19

  28. Printers Next What is athermal printer? • Generates images by pushing electrically heated pins against heat-sensitive paper • Dye-sublimation printer (also called a digital photo printer) uses heat to transfer dye to specially coated paper p. 317 Fig. 6-20

  29. Printers Next What is amobile printer? • Small, lightweight, battery-powered printer that allows mobile user to print from notebook computer, Tablet PC, PDA, or smart phone while traveling p. 317 Fig. 6-21

  30. Printers Next What is aplotter? • Sophisticated printer used to produce high-quality drawings • Large-format printercreates photo-realistic-qualitycolor prints p. 318 Fig. 6-23

  31. Printers Next What is adot-matrix printer? • Impact printer that produces printed images when tiny wire pins strike ribbon • Impact printer forms characters by striking mechanism against inked ribbon that contacts paper p. 318 - 319 Fig. 6-24

  32. Printers Next What is aline printer? • High-speed impact printer that prints entire lineat a time • Speed measured in lines per minute (lpm) • Band printer prints fullyformed characters using a hammer mechanism • Shuttle-matrix printer is high-speed printer that works like dot-matrix printer p. 319 Fig. 6-25

  33. 3-D Printers Next

  34. 3-D Printers Next

  35. Printers Next How do you know which printer to buy? • Depends on printing needs Budget Speed Color orblack and white Cost per page Multiple copies Graphics and photo printing Paper typesand sizes Systemcompatibility Future needs Wirelesscapability p. 310

  36. Speakers, Headphones, and Headsets Click to view Web Link, click Chapter 6, Click Web Link from left navigation, then click Wireless Music System below Chapter 6 Next What is anaudio output device? • Computer component that produces music, speech, or other sounds • Speakers and headsets are common devices p. 320 - 321 Figs. 6-26 – 6-27

  37. Speakers, Headphones, and Headsets Next What isvoice output? • Computer talks to you through speakers on computer • Internet telephonyallows you to have conversationover Web p. 321 - 322 Fig. 6-28

  38. Other Output Devices Next What is afacsimile (fax) machine? • Device that transmits and receives documents over telephone lines p. 322 Fig. 6-29

  39. Other Output Devices internal fax card in system unit external fax modem Click to view Web Link, click Chapter 6, Click Web Link from left navigation, then click Fax Modems below Chapter 6 fax machine Next What is afax modem? • Modem that allows you to send and receive electronic documents as faxes p. 322 Fig. 6-30

  40. Other Output Devices Click to view Web Link, click Chapter 6, Click Web Link from left navigation, then click Multifunction Peripherals below Chapter 6 Next What is amultifunction peripheral? • Provides functionality of printer, scanner, copy machine, and fax machine p. 323 Fig. 6-31

  41. Other Output Devices Next What is adata projector? • Device that takes text and images from computer screen and projects them onto larger screen p. 323 Fig. 6-32

  42. Other Output Devices Click to view Web Link, click Chapter 6, Click Web Link from left navigation, then click Force Feedback Devicesbelow Chapter 6 Next What isforce feedback? • Sends resistance to device in response to actions of user p. 324 Fig. 6-33

  43. Output Devices for Physically Challenged Users Next What other output options are available for visually impaired users? • Change Window settings, such as increasing size or changing color of text to make words easier to read • Blind users can work with Windows Vista’s Narrator • Braille printeroutputs information in Braille onto paper p. 326 Fig. 6-36

  44. Summary of Output Flat-panel displays Fax machines and fax modems CRT monitors Multifunction peripherals Printers Data projectors Speakers, headphones, and earphones Force feedback joysticks, wheels, and gamepads Chapter 6 Complete

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