Input and Output.pdf
Transcript of Input and Output.pdf
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TMX 1010 End-User Computing
Lecture 3:
Input and Output
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Lecture 3 (Input) Objectives
Define input
List characteristics of a keyboard
Describe different mouse types
and how they work
Summarize how pointing devices work
Explain how voice recognition works
Describe various input devicesfor PDAs, Tablet PCs, and smart phones
Explain how a digital camera works
Describe uses of PC video cameras,Web cams, and video conferencing
Discuss various scanners and reading
devices and how they work
Explain the types of terminal
Summarize the various biometric devices
Identify alternative input devices forphysically challenged users
Next
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What Is Input?
What isinput?
p. 234 - 236 Fig. 5-1 Next
Input device is any hardware component that
allows users to enter data and instructions
Data or instructions entered into memory of
computer
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What Is Input?
What are the two types of input?
p. 230 Fig. 5-2 Next
Unprocessed text,
numbers, images,
audio, and video
Instructions
Programs
Commands
User responses
Data
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The Keyboard
How is the keyboard divided?
p. 236 Fig. 5-2 Next
Typing area
Numeric keypad
Function keys,
special keys that
issue commands
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The Keyboard
What are alternative forms for commands?
p. 233 Fig. 5-4 Next
MICROSOFT WORD KEY COMBINATION EQUIVALENTS
Key Menu |
Command Combination Command Button
Copy Shift+F2 or Edit | Copy
Ctrl+C
Open Ctrl+F12 File | Open
Paste Ctrl+V Edit | Paste
Many programs allow you to use key combination,
menu, or button to obtain same result
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The Keyboard
What is theinsertion point?
p. 233 Fig. 5-5 Next
Blinking vertical bar that indicates where next
character you type will display
Pointerchanges
location and shape
as you move mouse
or other pointing
device
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The Keyboard
How are keyboards attached?
p. 238 Fig. 5-4 Next
Desktop computer
keyboards often
attach via a cable
Wireless keyboards
communicate with a
receiver attached to a
port on the system
unit
Keyboards often are
built into mobile
devices
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Pointing Devices
What is amouse?
p. 239 Fig. 5-5 and 5-6 Next
Pointing device that fits under palm of hand
Pointing device (mouse
pointer) controls movement
of pointer
Mechanical mouse has rubber
or metal ball on underside
Optical mouse hassenses light
to detect mouses movement
Laser mouse
Air mouse
Wireless mouse
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Tilt
wheel
Press
wheel
button
Free-
spin
wheel
Right-
drag
Triple-
click
Double-
click
Right-
click
Pointing Devices
What are common mouse operations?
p. 240 Fig. 5-7 Next
Point
Click
Drag
Rotate
wheel
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Other Pointing Devices
What is atrackball?
p. 241 Fig. 5-8 Next
Stationary pointing
device with a ball on its
top or side
To move pointer, rotate
ball with thumb, fingers,
or palm of hand
Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation,then click Repetitive StrainInjuries below Chapter 5
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Other Pointing Devices
What are atouchpadand a
pointing stick?
p. 241 - 242 Figs. 5-95-10 Next
Touchpadis small, flat,
rectangular pointing device
sensitive to pressure and motion Pointing stickis pointing device
shaped like pencil eraser
positioned between keys on
keyboard
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Other Pointing Devices
What is alight pen?
p. 239 Fig. 5-16 Next
Handheld input device
that can detect light
Press light pen against
screen surface and then
press button on pen
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Other Pointing Devices
What is atouch screen?
p. 242 Fig. 5-12 and 5-13 Next
Touch areas of screen with
finger Often used with kiosks
Microsoft Surface is a 30-
inch tabletop display that
allows one or more
people to interact with
the screen using their
fingers or hands
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Other Pointing Devices
What is adigital pen?
p. 243 Fig. 5-14 Next
Looks like a ballpoint pen, but uses pressure to write
text and draw lines Used withgraphics tablets, flat electronic boards
Also called stylus
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Controllers for Gaming and Media Players
What are the types ofgame controllers?
p. 244 - 245 Fig. 5-15 Next
Gamepads
Joysticks and
Wheels
Light gun
Dance pad
Motion-sensing
game controller
Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation,then click Wii Remote
below Chapter 5
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Controllers for Gaming and Media Players
What is atouch-sensitive pad?
p. 245 Fig. 5-16 Next
Input device on a portable
media player that enables
users to scroll through
and play music, viewpictures, watch videos or
movies, adjust volume,
and customize settings
Click Wheel
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Voice Input
What is voice input?
p. 245 - 246 Fig. 5-17 Next
Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation,then click Voice Inputbelow Chapter 5
The process of entering input by speaking into
a microphone
Voice recognitionis the computers capability
of distinguishing spoken words
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Voice Input
What is aMIDI (musical instrument
digital interface)?
p. 246 Fig. 5-18 Next
External device, such as electronic piano
keyboard, to input music and sound
effects
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Smart Phones, PDAs, and Tablet PCs
How is data
entered into a
smart phone?
Talk directly into
the microphone, orby using digital
cameras and touch-
sensitive pads
p. 247 Fig. 5-19 Next
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Smart Phones, PDAs, and Tablet PCs
What is aportable keyboard?
p. 248 Fig. 5-20 Next
A portable keyboard is
a full-sized keyboard
that communicates with
the phone
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Smart Phones, PDAs, and Tablet PCs
What is asmart phone?
p. 248 - 249 Fig. 5-21 Next
Users can input and send text messages,
graphics, pictures, video clips, and sound files
Many have a built-in or attachable camera
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Smart Phones, PDAs, and Tablet PCs
What is aTablet PC?
p. 249 250 Fig. 5-23 Next
Mobile computer that
includes handwriting
recognition software
Primary input device is a
pressure-sensitive digital
pen
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Digital Cameras
What is adigital camera?
p. 250 - 251 Fig. 5-24 Next
Allows you to take
digital pictures
Images viewable
immediately on
camera
Download to
computer Post pictures
to Web
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Digital Cameras
How does a digital camera work?
p. 251 Fig. 5-25 Next
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Digital Cameras
What isresolution?
p. 252 Fig. 5-26 Next
Sharpness and clarity of image
The higher the resolution, the better the image
quality, but the more expensive the camera
Pixel(pictureelement)
is single point in
electronic image
Greater the number of
pixels, the better the
image quality
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Video Input
What isvideo input?
p. 253 Fig. 5-27 Next
Process of entering full-motion images
into computer
Video capture cardis
adapter card that convertsanalog video signal into
digital signal that
computer can use
Digital video (DV)camerarecords video as
digital signals
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Video Input
What is aWeb cam?
p. 253 - 254 Fig. 5-28 Next
Web cam is used to capture video and still images, send
e-mail messages with video attachments, add live
images to instant messages, broadcast live images over
the Internet, and to make video telephone calls on
Internet
Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation,then click Web Camsbelow Chapter 5
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Video Input
What isvideo conferencing?
p. 254 Fig. 5-29 Next
Whiteboard is
another window on
screen that can
display notes and
drawings
simultaneously onall participants
screens
Two or more geographically separated people
who use network or Internet to transmit
audio and video data
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Scanners and Reading Devices
What is ascanner?
p. 255
256 Fig. 5-30 Next
Light-sensing device that
reads printed text and
graphics
Used for image processing,
converting paper documents
into electronic images
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Scanners and Reading Devices
How does aflatbed scannerwork?
p. 256 Fig. 5-31 Next
S d d
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Scanners and Reading Devices
What is anoptical reader?
p. 257 Fig. 5-32 Next
Opticalcharacterrecognition
(OCR)reads characters in
OCR font
Optical markrecognition
(OMR) reads hand-drawn pencil
marks, such as small circles
Device that uses light source to read characters, marks,
and codes and then converts them into digital data
S d R di D i
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Scanners and Reading Devices
What is aturnaround document?
p. 257 Fig. 5-33 Next
Document that you
return to the company
that sent it
Portion you return has
information printed in
OCR characters
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Scanners and Reading Devices
What is abar code reader?
p. 258 Fig. 5-35 Next
Uses laser beams to read bar codes
S d R di D i
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Scanners and Reading Devices
What is abar code?
p. 258 Fig. 5-35 Next
Identification code that consists of a set of vertical
lines and spaces of different widths
POSTNET
UniversalProduct
Code(UPC)
S d R di D i
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Scanners and Reading Devices
What are some widely used bar codes?
p. 256 Fig. 5-38 Next
S d R di D i
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What is amagnetic-ink character recognition
(MICR) reader?
Scanners and Reading Devices
p. 260 Fig. 5-38 Next
Can read text printed with magnetized ink
Banking industry almost exclusively uses MICR
for check processing
S d R di D i
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Scanners and Reading Devices
What is adata collection device?
p. 261 Fig. 5-39 Next
Obtains data directly at location where transaction
or event takes place
Transmits data over
network
or Internet
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Other Input Devices
What is anRFID reader?
p. 259 Fig. 5-36 Next
Reads information on
the tag via radio waves
Can be handheld
devices or mounted in a
stationary object
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Other Input Devices
What is amagnetic stripe card reader?
p. 260 Fig. 5-37 Next
Reads the magnetic
stripe on the back of a
credit card
Exposure to a magnetic
field can erase the
contents of a cards
magnetic stripe
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Terminals
What is apoint of sale(POS) terminal?
p. 261 - 262 Fig. 5-40 Next
Records purchases,
processes credit or
debit cards, and
updates inventory
Swipe credit or debit
card through card
reader or use your
fingerprint
Reads customers
personal data from
magnetic strip
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Terminals
What is anautomated teller machine (ATM)?
p. 262 Fig. 5-41 Next
Self-service banking
machine that connects to a
host computer through a
network
Bi t i Inp t
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Biometric Input
What isbiometrics?
p. 262
264 Fig. 5-42 and 5-43 Next
Authenticates persons identity
by verifying personal
characteristic
Fingerprint reader captures
curves and indentations offingerprint
Hand geometry system measures
shape and size of persons hand
Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation,then click Biometric Inputbelow Chapter 5
Bi m tri Inp t
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Biometric Input
What are examples of biometric technology?
p. 263
264 Figs. 5-44
5-45 Next
Voice verification system compares live
speech with stored voice pattern
Signature verification system recognizes
shape of signature
Iris recognition systemreads
patterns in blood vessels in back
of retina
Biometric data is sometimes storedon smart card, which stores
personal data on microprocessor
embedded in card
P tting It All Together
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Enhanced keyboard or ergonomic keyboard
Mouse
Stylus for smart phone or other personal mobile
device
Game controller(s)
30-bit 600 x 1200 ppi color scanner
4-megapixel digital camera
Headphones that include a microphone (headset)
Web cam
Fingerprint reader
Putting It All Together
What are recommended input devices for home users?
p. 265 Fig. 5-46 Next
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Enhanced keyboard or ergonomic keyboard
Mouse
Stylus and portable keyboard for smart phone or
other personal mobile device, or digital pen for
Tablet PC
36-bit 600 x 1200 ppi color scanner
5-megapixel digital camera
Headphones that include a microphone (headset) Web cam
Putting It All Together
p. 265 Fig. 5-46 Next
What are recommended input devices for
small office/home office users (SOHO)?
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Wireless mouse for notebook computer
Touchpad or pointing stick on notebook computer
Stylus and portable keyboard for smart phone orother personal mobile device, or digital pen for Tablet
PC
4- or 5-megapixel digital camera
Headphones that include a microphone (headset)
Fingerprint reader for notebook computer
Putting It All Together
What are recommended input devices for mobile users?
p. 265 Fig. 5-46 Next
Putting It All Together
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Enhanced keyboard or ergonomic keyboard
Mouse
Stylus and portable keyboard for smart phone or other
personal mobile device, or digital pen for Tablet PC
Touch screen Light pen
42-bit 1200 x 1200 ppi color scanner
6- to 12-megapixel digital camera
OCR/OMR readers, bar code readers, MICR reader, or data
collection devices Microphone
Video camera for video conferences
Fingerprint scanner or other biometric device
Putting It All Together
p. 265 Fig. 5-46 Next
What are recommended input devices for large
business users?
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Enhanced keyboard or ergonomic keyboard
Mouse
Stylus and portable keyboard for smart phone or
personal mobile device
Pen for graphics tablet
48-bit 1200 x 1200 ppi color scanner
6- to 12-megapixel digital camera
Headphones that include a microphone (headset)
Web cam
Putting It All Together
What are recommended input devices for power users?
p. 265 Fig. 5-46 Next
Input Devices for Physically Challenged Users
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Input Devices for Physically Challenged Users
What input devices are available
for those with physical limitations?
p. 263 Figs. 5-49
5-50 Next
Keyguardallows users to rest
hands on keyboard without
accidentally pressing keys
Head-mounted pointer controls
pointer on screen
New developments includegesture
recognition and computerized
implant devices
Summary of Input
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Summary of Input
Keyboard, mouse, and other
pointing devices
Voice input
Input devices for PDAs, Tablet PCs,
and smart phones
Digital cameras
Video Input
Scanners and reading devices
Terminals
Biometric input
Input devices for physically
challenged users
Next
Lecture 3 (Output) Objectives
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Lecture 3 (Output) Objectives
Describe the four categories of output
Summarize the characteristics of LCD monitors,
LCD screens, plasma monitors, and CRT monitors
Describe the various ways to print
Differentiate between a nonimpact printer and an
impact printer
Describe the uses of speakers, headphones,
and earphones
Identify the output characteristics of fax machines
and fax modems, multifunction peripherals, data
projectors, interactive whiteboards, joysticks,
wheels, gamepads, and motion-sensing game
controllers
Identify output options for
physically challenged users
Next
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
What is Output?
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What is Output?What isoutput?
p. 300 - 301 Fig. 6-1 Next
Data that has been processed into a useful form
Output device is any hardware component that can convey
information to one or more people
Display Devices
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Display DevicesWhat is adisplay device?
p. 302 Next
Output device that visually
conveys text, graphics, and
video information
Information on display device
sometimes called soft copy
Monitorhouses display device
that is packaged as separate
peripheral
Display Devices
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Display DevicesWhat is aCRT monitor?
p. 309 Fig. 6-10 Next
Containscathode-raytube (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
Display Devices
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Display Devices
What is theENERGY STAR program?
p. 309 Next
Encourages manufacturers to create energy-efficientdevices that require little power when not in use
Monitors and devices meeting guidelines display
ENERGY STAR label
Display Devices
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Display Devices
What is an LCD monitor?
p. 302 - 303 Fig. 6-2 Next
Uses liquid crystal display Has a small footprint
Also called Flat-Panel Displays
Mobile devices that contain
LCD displays include
Notebook computer, Tablet
PC, ultra personal
computer, portable media
player, smart phone, and
PDA
Display Devices
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Display Devices
What about using multiple LCD monitors?
p. 303 Fig. 6-3 Next
Some users position
two or more monitors
side-by-side or stacked
Allows users to runmultiple applications
simultaneously
Display Devices
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Display Devices
What are some mobile devices that have LCD screens?
p. 303 - 304 Fig. 6-4 Next
Click to view Web Link,click Chapter 6, Click Web Linkfrom left navigation,then click Widescreen LCDMonitors below Chapter 6
Displays Devices
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Displays Devices
What is anelectronic book (e-book)?
p. 300 Next
Small, book-sized computer that uses LCD screen Allows users to read, save, highlight, bookmark, and
add notes to online text Download new book content from Web
Display Devices
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Display Devices
What isresolution?
p. 304 - 305 Fig. 6-5
Sharpness and
clarity of image
Higher resolution
makes image
sharper, displays
more text on screen,makes some elements
smaller
Next
Number of horizontal
and vertical pixels in
a display device
Display Devices
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Display Devices
How do you use an LCD monitor with a video card?
p. 306 Fig. 6-6 Next
Plug monitor intoDigital Video Interface (DVI)port or
an HDMI port on computer
Click to view Web Link,click Chapter 6, Click Web Linkfrom left navigation,then click Video Cardsbelow Chapter 6
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Display Devices
What is aplasma monitor?
p. 307 Fig. 6-8 Next
Displays image by applying voltage to layer of gas Larger screen size and richer colors than LCD, but are more
expensive
Display Devices
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Great for game playing, watching movies, and browsing the Internet
HDTV
(high-definition television)
is the most advanced form
of digital TV
Display Devices
What isdigital television (DTV) andhigh-definition
television (HDTV)?
p. 308 Next
Uses digital signals to produce
crisper, higher-quality output
on LCD and plasma televisions
Many programs can be
broadcast on a single
digital channel
All broadcast stations
transmit digital signalsHigh resolution
Printers
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PrintersWhat is aprinter?
p. 310 Fig. 6-11 Next
Output device thatproduces text and
graphics on a physical
medium Result ishard copy, or
printout Two orientations:portrait
andlandscape
portrait
landscape
Printers
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Speed
PrintersHow do you know which printer to buy?
p. 310 Next
BudgetColor or
black and white
Cost per pagePaper types
and sizes
Graphics and
photo printingMultiple copies
Systemcompatibility
Depends on printing needs
WirelesscapabilityFuture needs
Printers
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What is adot-matrix printer?
p. 318 - 319 Fig. 6-24 Next
Impact printer that produces printed imageswhen tiny wire pins strike ribbon Impact printer forms
characters by striking
mechanism against inkedribbon that contacts paper
Printers
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What is aline printer?
p. 319 Fig. 6-25 Next
High-speed impact printerthat prints entire lineat a time
Speed measured in lines
per minute (lpm)
Band printer prints fullyformed characters using ahammer mechanism
Shuttle-matrix printer is
high-speed printer thatworks like dot-matrix
printer
Printers
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What is anonimpact printer?
p. 312 Fig. 6-14 Next
Forms characters and graphics without striking paper
Ink-jet printer sprays tiny drops of liquid ink
onto paper Prints in black-and-white or color on a variety
of paper types
Printers
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What is theresolutionof a printer?
p. 306 Fig. 6-20 Next
Sharpness and clarity Measured by number ofdots per inch (dpi)printer
can output
Printers
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How does an ink-jet printer work?
p. 313
314 Fig. 6-16 Next
Step 1.A smallresistor heats the
ink, causing the
ink to boil and
form a vapor
bubble.
Step 2.Thevapor bubble
forces the ink
through the
nozzle.
Step 3.Inkdrops onto the
paper.
Step 4.As the vapor bubblecollapses, fresh ink is drawn into
the firing chamber.
Click to view Web Link,click Chapter 6, Click Web Linkfrom left navigation,then click Ink-Jet Printersbelow Chapter 6
print cartridge
print head
firing
chamber
nozzlebubble resistor ink
ink dot
Printers
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What is aphoto printer?
p. 314 - 315 Fig. 6-17 Next
Color printer that produces photo-lab-qualitypictures
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
Click to view Web Link,click Chapter 6, ClickWeb Link from leftnavigation, then clickPictBridge below Chapter 6
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What is alaser printer?
p. 315 Fig. 6-18 Next
High-speed, high-qualitynonimpact printer
Prints text and graphics
in high-quality
resolution, ranging from1,200 to 2,400 dpi
Typically costs more
than
ink-jet printer, but ismuch faster
Printers
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How does a laser printer work?
p. 316 Fig. 6-19 Next
Click to view Web Link,click Chapter 6, ClickWeb Link from leftnavigation, then clickLaser Printersbelow Chapter 6
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What is athermal printer?
p. 317 Fig. 6-20 Next
Generates images bypushing 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
Printers
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What is amobile printer?
p. 317 Fig. 6-21 Next
Small, lightweight, battery-powered printer that allowsmobile user to print from notebook computer, Tablet
PC, smart phone, or other personal mobile device
while traveling
Printers
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What are label printers and postage printers?
p. 318 Fig. 6-22 Next
Small printer that prints on adhesive-type material Postage printer has built-in digital scale and prints
postage stamps Most also print bar codes
Printers
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What is aplotter?
p. 318 Fig. 6-23 Next
Sophisticated printer used to produce high-qualitydrawings
Large-format printercreates photo-realistic-quality
color prints
Printers
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What iswireless printing?
p. 312 Fig. 6-29 Next
Output transmitted to printer wirelessly via infraredlight waves or radio waves
Bluetooth printing uses radio waves
Devices need to be within 30-foot range
Click to view Web Link,
click Chapter 6, Click Web Link
from left navigation, then click
Wireless Printing
below Chapter 6
Speakers, Headphones, and Earphones
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What is anaudio output device?
p. 320 - 321 Figs. 6-26
6-28 Next
Computer component that produces music, speech, orother sounds
Speakers and headsets are common devices
Click to view WebLink, click Chapter 6, ClickWeb Link from leftnavigation, then clickWireless Music Systembelow Chapter 6
Speakers, Headphones, and Earphones
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What isvoice output?
p. 314 Fig. 6-32 Next
Computer talks to you through speakers on computer Internet telephony allows you to have conversation
over Web
Other Output Devices
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What is afacsimile (fax) machine?
p. 322 Fig. 6-30 Next
Device that transmits and receives documents overtelephone lines
Converts an original document into a digitized image
Many computers include fax capability
Other Output Devices
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What is afax modem?
p. 322 Fig. 6-29 Next
Modem that allows you to send and receive electronicdocuments as faxes
Click to view WebLink, click Chapter 6,Click Web Link fromleft navigation, thenclick Fax Modemsbelow Chapter 6
Other Output Devices
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What is amultifunction peripheral?
p. 323 Fig. 6-30 Next
Provides functionality
of printer, scanner,
copy machine, and
fax machine
Other Output Devices
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What is adata projector?
p. 323 Fig. 6-31 Next
Device that takes textand images from
computer screen and
projects them onto
larger screen LCD projector
Digital Light Processing
(DLP) projector
Other Output Devices
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What is aninteractive
whiteboard?
p. 324 Fig. 6-32 Next
Touch-sensitive device
that displays the image
on a connected
computer screen SMART board
Click to view WebLink, click Chapter 6, ClickWeb Link from leftnavigation, then clickSMART Boardbelow Chapter 6
Other Output Devices
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What isforce feedback?
p. 324 Fig. 6-33 Next
Sends resistance todevice in response to
actions of user
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What are suggested output devices for the home user?
p. 325 Fig. 6-34
Monitor Printer Other
17- or 19-inch
LCD monitor, or
17-inch LCDscreen on
notebook
computer
Ink-jet color
printer; or
Photo printer
Speakers
Headphones or
earphones Force-feedback
joystick, wheel,
gamepad, and/or
motion-sensing
game controller
Next
Putting It All Together
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What are suggested output devices for the small office/home
office user?
p. 325 Fig. 6-34
19- or 22-inch
LCD monitor
LCD screen onTablet PC, smart
phone, or other
personal mobile
device
Multifunction
peripheral; or
Ink-jet colorprinter; or
Laser printer
(black-and-
white or color)
Label printer
Postage printer
Fax machine
Speakers
Monitor Printer Other
Next
Putting It All Together
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What are suggested output devices for the mobile user?
p. 325 Fig. 6-34
17-inch color
LCD screen on
notebookcomputer
LCD screen on
Tablet PC, smart
phone, or other
personal mobile
device
Mobile color
printer
Ink-jet colorprinter; or
Laser printer for
in-office use
(black-and-
white or color)
Photo printer
Fax modem
Headphones or
earphones DLP data
projector
Monitor Printer Other
Next
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What are suggested output devices for the power user?
p. 325 Fig. 6-34 Next
27-inch LCD
monitor
Laser printer
(black-and-
white or color) Plotter or large-
format printer;
or
Photo printer; or
Dye-sublimation
printer
Fax machine or
fax modem
Speakers Headphones or
earphones
Monitor Printer Other
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What are suggested output devices for the large business user?
p. 325 Fig. 6-34
High-speed laser
printer
Laser printer,color
Line printer (for
large reports
from a
mainframe)
Label printer
Fax machine or
fax modem
Speakers Headphones or
earphones
Networked DLP
data projector
Interactive
whiteboard
Monitor Printer Other
Next
19- or 22-inch
LCD monitor
LCD screen onTablet PC, smart
phone, or other
personal mobile
device
Output Devices for Physically Challenged Users
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What is theMagnifier?
p. 326 Fig. 6-35Next
Windows Magnifierenlarges text and
other items on
screen
Output Devices for Physically Challenged Users
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What other output options are available for visually
impaired users?
p. 326 Fig. 6-36Next
Change Window settings,
such as increasing size or
changing color of text to
make words easier to read
Blind users can work with
Windows Vistas Narrator Braille printeroutputs
information in Braille
onto paper
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Multifunction peripheralsDisplay devices
Printers
Speakers, headphones, and earphones
Fax machines and fax modems
Data projectors
Interactive whiteboards
Force feedback joysticks, wheels,and gamepads
L t 3 C l t