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Output Devices
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AICT001-3-1 / Computer Technology System Unit
AICT001-3-1 / Computer Technology Output Devices
Topic & Structure of the lesson
Wht is output ! Disply "evices
C#T monitor
$lt-pnel "isplys %rinters
Spe&ers n" 'e"sets
Other Output "evices Output "evices (or physiclly chllenge" users
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Learning Outcomes
At the en" o( this lecture)*OU*OUshoul" +e +le to ,
Describe the four categories of output
Describe characteristics of a CRT monitor and factors that
affect its quality
Summarize the characteristics of LCD monitors, LCD
screens, gas plasma displays, and DT!s
Differentiate bet"een an impact printer and a non#impact
printer
Summarize the characteristics of in$#%et printers, photo
printers, laser printers, thermal printers, mobile printers,
label and postage printers, and plotter and large#format
printers
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Learning Outcomes
At the en" o( this lecture)*OU*OUshoul" +e +le to ,
Describe the methods used for "ireless printing
Describe the uses of spea$ers and headsets
&dentify the output characteristics of fa' machines and fa'modems, multifunction peripherals, data pro%ectors,
%oystic$s, and "heels
&dentify output options for physically challenged users
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Key Terms you must be able touse
I( you hve mstere" this topic) you shoul" +e+le to use the (olloing terms correctly in your
ssignments n" e.ms,
OutputCRT monitor
Resolution
Dot pitch
(i'el
Refresh rate
!ideo card
LCD monitor)as plasma monitor
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What is Output?
Wht isoutput! Dt tht hs +een processe" into use(ul (orm
Output "eviceis any hard"are component that can convey
information to one or more people
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Display DevicesWht is "isply "evice!
Output "evice tht visully conveys te.t) grphics)n" vi"eo in(ormtion
&nformation on display device sometimes
called soft copy
Consist o( screen n" the components thtpro"uce the in(ormtion on the screen
onitorhouses "isply "evice tht is pc&ge" s
seprte peripherl
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Display Devices
Wht is n CD monitorCD monitor!
*ses liui" crystldisplay ave a smll (ootprint) less spce !ariety of sizes
+obile devices that contain LCD displaysinclude oteboo$ computer, Tablet (C, ultra
personal computer, portable media
player, smart phone, and (D- multiple LCD monitorsmultiple LCD monitors . to run multiple
applications simultaneously
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Flat-anel Displays
Wht is plsm monitor!
Displays image by
applying voltage to
layer of gas
Larger screen sizeand richer colors
than LCD, but are
more e'pensive
Wht is"igitl television
2DT4n"high-"e(initiontelevision 2'DT4!*ses digital signals to produce
crisper, higher#quality output on LCD
and plasma televisionsigh resolution-ll broadcast stations transmit digital
signals+any programs can be broadcast on
a single digital channelDT! /high#definition television0DT! /high#definition television0
is the most advanced form of digital
T!)reat for game playing, "atching
movies, and bro"sing the &nternet
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!"T #onitors
Wht is C#T monitor! Continsctho"e-ry tu+e2C#T4
Screen cote" ith tiny "ots o(
phosphor mteril
1ach dot consists of a red, blue,and green phosphor
Common si5es re 16) 17) 18) 91)
n" 99 inches
!ie"able size is diagonalmeasurement of actual vie"ing
area
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!"T #onitors
Wht "etermines the ulity o( C#T monitor! Screen resolution
#e(resh rte is spee" t hich monitor re"rs
imges on screen
Te.t crete" ith smller "ot pitch is esier to re"
Compre to CD) C#T ,
rger (ootprints) more "es& spce
ess cost:enertes more het n" use more poer%ro"uce smll mount o( electromgnetic r"ition
2;#4) cn pose helth ris&
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Displays
Wht isre(resh rte!Wht is "ot pitch !
Speed at "hich monitor
redra"s images on the
screen
Should be fast enoughto maintain a constant,
flic$er#free image
igh#quality monitor "ill
provide refresh rate of
at least 23 hertz
&mage on the screen
redra"s itself 23 times
per second
umber of bits a video
card uses to store
information about each
pi'el
-lso called colour depth
Determines number of
colours a video cardcan
display
)reater the number of
bits, better the resulting
image
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rinters
Wht is printer! Output "evice tht
pro"uces te.t n"
grphics on physicl
me"ium #esult ishr" copy) or
printout To orienttions,
portritn"ln"scpe
rious ys user
print "ocuments
n" pictures
Cable via *S4 orparallel port5ireless printing4luetooth
infrared+edia cardsDoc$ing stationCentral printer on
net"or$
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rinters
Wht is nonimpct printer!
$orms chrcters n" grphics ithout stri&ing
pper
Wht is n impct printer!
$orms chrcters n" grphics on piece o(
pper +y stri&ing mechnism ginst n in&e"ri++on tht physiclly contcts the pper ithout
striking paper
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rinters
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rinters
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rinters
Wht is theresolutiono( printer! Shrpness n" clrity esure" +y num+er o("ots per inch 2"pi4
printer
cn output
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rinters
Wht is "ot-mtri. printer! Impct printer tht pro"uces printe" imges
hen tiny ire pins stri&e ri++on
Impct printerforms
characters by stri$ing
mechanism against in$ed
ribbon that contacts paper
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rinters
Wht is line printer! 'igh-spee" impct
printer tht prints entirelinet time
Spee" mesure" inlines per minute 2lpm4 4and printer prints fully
formed characters usinga hammer mechanism
Shuttle#matri' printer ishigh#speed printer that"or$s li$e dot#matri'printer
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Spea$ers% ea'phones% an'ea'setsWhat is an
audio output device?
p. 320 - 321 Figs. 6-26 6-27 Next
Computer component that produces music, speech, or
other sounds
Speakersand headsets are common devices
Click to view WebLink, click Chapte 6, ClickWeb Link !o" le!tnavigation, then clickWieless #$sic %&ste"below Chapte 6
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Spea$ers% ea'phones% an'ea'setsWht isvoice output!
Computer tl&s to you through spe&ers on
computer Internet telephonyllos you to hve
converstionover We+
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Other Output Devices
O h O D i
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Other Output Devices
(csimile 2(.4
mchine
ulti(unction
peripherl
"t pro@ector
(. mo"em
(orce(ee"+c&
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utting (t )ll Together
What are suggested output devices for the home user?
Monitor Printer Other
17- or 19-inch
LCD monitor
Ink-jet color
printer; or Photo printer
Speakers
Headset Force-
feedback
joystick,
wheel, and/or
gamepad
User
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utting (t )ll Together
What are suggested output devices for the small office/home office user?
19- or 21-inch
LCD monitor Color LCD
screen on
Tablet PC,
PDA, or
smart phone
Multifunction
peripheral; or Ink-jetcolor
printer; or Laser printer
(black-and-
white or
color) Label printer Postage
printer
Fax machine
Speakers
Monitor Printer OtherUser
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utting (t )ll Together
What are suggested output devices for the mobile user?
17-inch color
LCD screenon notebook
computer LCD screen
on Tablet PC,
PDA, or
smart phone
Mobile color
printer Ink-jet color
printer; or Laser printer for
in-office use
(black-and-white
or color)
Photo printer
Fax modem
Headphones orearphones DLP data
projector
Monitor Printer OtherUser
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utting (t )ll Together
What are suggested output devices for the power user?
23-inch LCD
monitor
Laser printer
(black-and-whiteor color) Plotter or large-
format printer;
or Photo printer; or Dye-sublimation
printer
Fax machine or
fax modem Speakers Headphones or
earphones
Monitor Printer OtherUser
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utting (t )ll Together
What are suggested output devices for the large business user?
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 DLP data
projector
Monitor Printer Other
19- or 21-inch
LCD monitor LCD screen on
Tablet PC, PDA,
or smart phone
User
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Output Devices for hysically !hallenge'*sers
Wht is thegni(ier! Win"os gni(ier
enlrges te.t n"
other items on
screen
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Output Devices for hysically !hallenge'*sersWht other output options re vil+le (or visully
impire" users!
p. 326 Fig. 6-36 Next
Chnge Win"o settings)
such s incresing si5e or
chnging color o( te.t to
m&e or"s esier to re" lin" users cn or& ith
Win"os istBs =rrtor rille printeroutputs
in(ormtion in rilleonto pper
f O
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Fax machines and fax modems
Summary of Output
Flatpanel displa!s
C"# monitors
$rinters
Speakers, headphones, and earphones
%ultifunction peripherals
&ata pro'ectors
Force feedback 'o!sticks, wheels,and gamepads
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