chapter06 output devices2

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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


7/32AICT001-3-1 / Computer Technology System UnitAICT001-3-1 / Computer Technology Output Devices

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



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



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



!"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$



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



rinters



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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AICT001-3-1 / Computer Technology System UnitAICT001-3-1 / Computer Technology Output Devices

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

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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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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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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



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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



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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

chapter06 output devices2

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