Title: Chapter 6 Output
1Chapter 6Output
2Chapter 6 Objectives
Describe the four categories of output
Summarize the characteristics of ink-jet
printers, photo printers, laser printers, thermal
printers, portable printers, label and postage
printers,and plotter and large-format printers
Describe characteristics of a CRT monitor and
factors that affect its quality
Describe the methods used for wireless printing
Explain the relationship between a video cardand
CRT monitor
Describe the uses of speakers and headsets
Summarize the characteristics of flat panel
monitors, LCD screens, gas plasma displays,and
HDTV displays
Identify the output characteristics of fax
machines and fax modems, multifunction
peripherals, data projectors, joysticks, and
wheels
Differentiate between an impact printerand a
nonimpact printer
Identify output options for physicallychallenged
users
3WHAT IS OUTPUT?
- Data processed into a useful form, called
information - Text
- Graphics
- Audio
- Video
4WHAT ARE OUTPUT DEVICES?
- Any computer component capable of conveying
information to a user - Hardcopy devices
- Permanent availability
- Softcopy devices
- Available temporarily
5DISPLAY DEVICES
- Visually conveys text, graphics, and video
information - Soft copy
6DISPLAY DEVICES
- CRT (Cathode Ray Tube) Monitors
- Screen housed in a plastic or metal case
- Color vs Monochrome
- Pixels (PICture ELement)
- Viewable size
7DISPLAY DEVICES
- Resolution - sharpness and clarity
- Depends on
- Number of pixels (PICture ELements)
- Dot pitch
- Higher resolution means smaller images display
- Refresh rate speed at which monitor redraws
images on screen
8DISPLAY DEVICES
- Controls for brightness, contrast
- Adjustable bases
- All CRTs produce a small amount of
electromagnetic radiation (EMR) - Greatest at sides and back
- LCDs dont have this risk
- ENERGY STAR program
9DISPLAY DEVICES
- Also called LCD monitor
- Takes up less space than CRT
- Uses less than 1/3 the power of CRT.
10DISPLAY DEVICES
- Notebooks
- Tablet PCs
- PDAs
- Smart phones
- Electronic Books (E-Books)
11DISPLAY DEVICES
- Active matrix (also called TFT - thin-film
transistor) - High quality color
- Viewable from all angles
- Organic LED is new type of TFT
- Even better quality
- Less expensive, need less power
- Passive matrix (also called dual-scan)
- Uses less power
- Lower quality display
12DISPLAY DEVICES
- Gas Plasma Monitors
- Another flat-panel display
- Larger screen sizes and higher quality than LCD
- Much more expensive than LCD
13PRINTERS
- Produces text and graphics on a physical medium
such as paper or transparency film - Hard copy (printout)
- Impact vs. nonimpact
- Portrait vs. landscape orientation
14PRINTERS
- Printing mechanism strikes paper, ribbon and
character together - Most are not letter quality
- Used for multipart forms
15PRINTERS
- Impact Printers
- Dot matrix printers
- Small dots form characters
- Continuous form paper
- More pins on print head means higher quality
16PRINTERS
- Impact Printers
- Line printers
- High speed
- Prints an entire line at a time
- Noisy, usually low quality
- Band printer
- Shuttle-matrix printer
17PRINTERS
- Nonimpact Printers
- Ink-jet printers
- Spray tiny drops of ink onto the paper
- Resolution measured in dots per inch (dpi)
18PRINTERS
- Nonimpact Printers
- Laser printers
- Faster, higher quality than ink-jet
- Operates much like a copier
- Stores entire page before printing it
- Page description language (PDL)
- PCL (Printer Control Language)
- Postscript
19PRINTERS
- Nonimpact Printers
- Basic Thermal printers
- Uses heat to transfer image to specially treated
paper - Low quality image fades over time
- Thermal wax-transfer printers
- Melt colored wax onto heat-sensitive paper
- High-quality color expensive
- Dye-sublimation printers
- use heat to transfer colored dye to specially
coated paper
20PRINTERS
- Nonimpact Printers
- Special-purpose printers
- Photo printer
- Label printer
- Portable printers
21PRINTERS
- Nonimpact Printers
- Plotters
- Pen plotters
- Electrostatic plotters
- Large format printers
- Photo-realistic quality color prints
22WIRELESS PRINTING
- Uses one of these technologies
- Infrared (light waves)
- must align IrDA ports on sending device and
printer - Bluetooth (radio waves)
- no need to align
- can broadcast up to 60 feet
23AUDIO OUTPUT
- Audio output devices
- Common devices speakers and headphones
- Produce music, speech, or other sounds
- Voice output
- Digitized vs. synthesized speech
- Internet Telephony
24OTHER OUTPUT DEVICES
- Data projectors
- Fax machines
- Multifunction devices (MFDs)
25OUPUT DEVICES FOR THE PHYSICALLY CHALLENGED
- Accessibility accessories
- Magnifier
- Control Panel/Accessibility Options
- Braille printer
26Chapter 6 Complete