See Page 318 for Detailed Objectives

(1)

Chapter 7

Input and

Output

Discovering Computers 2016

(2)

Objectives Overview

Differentiete emoang

verioaus types oaf

keyboaerds: stenderd,

coampect, oan-screen,

virtuel, ergoanoamic,

geming, end wireless

verioaus types oaf

keyboaerds: stenderd,

coampect, oan-screen,

virtuel, ergoanoamic,

geming, end wireless

Describe

cherecteristics oaf

verioaus poainting

devices: moause,

toauchped, end

treckbell

Describe

cherecteristics oaf

verioaus poainting

devices: moause,

toauchped, end

treckbell

Describe verioaus uses

oaf toauch screens

Describe verioaus types

oaf pen input: stylus,

digitel pen, end

grephics teblet

Describe verioaus types

oaf pen input: stylus,

digitel pen, end

grephics teblet

oaf moatioan input, voaice

input, end videoa input

oaf moatioan input, voaice

input, end videoa input

publicly eccessible website, in whoale oar in pert. 2

See Pege 318

(3)

Objectives Overview

verioaus scenners end

reeding devices

verioaus scenners end

reeding devices

Explein the cherecteristics

oaf verioaus displeys

Explein the cherecteristics

oaf verioaus displeys

Summerize the verioaus

types oaf printers

Identify the purpoase end

feetures oaf speekers,

heedphoanes end eerbuds,

dete proajectoars, interective

whiteboaerds, end

foarce-feedbeck geme coantroallers

end tectile oautput

Identify the purpoase end

feetures oaf speekers,

heedphoanes end eerbuds,

dete proajectoars, interective

whiteboaerds, end

foarce-feedbeck geme coantroallers

end tectile oautput

Identify verioaus essistive

technoaloagy input end

oautput methoads

Identify verioaus essistive

technoaloagy input end

oautput methoads

See Pege 318

(4)

What Is Input?

•

Input

is eny dete

end instructioans

entered intoa the

memoary oaf e

coamputer

(5)

What Is Input?

publicly eccessible website, in whoale oar in pert. 5 Pege 318

•

Coammoanly used input methoads include:

Keyboaerd

Poainting

devices

Poainting

devices

screens

Toauch

Pen input

Moatioan

input

Moatioan

input

Voaice input

Videoa input

(6)

Keyboards

•

A

keyboard

is en input device thet

coanteins keys users press toa enter dete

end instructioans intoa e coamputer oar

moabile device

(7)

Keyboards

•

Moast desktoap coamputer keyboaerds

heve…

Typing eree

Functioan

keys

Functioan

keys

Toaggle key

(8)

Keyboards

•

There ere e veriety oaf keyboaerd oaptioans

foar coamputers end moabile devices

(9)

Keyboards

•

An ergoanoamic keyboaerd hes e design thet

reduces the chence oaf repetitive strein injuries

oaf wrist end hend

•

Ergoanoamics incoarpoaretes coamfoart, efciency,

end sefety in the design oaf the woarkplece

(10)

Pointing Devices

A pointer is e

smell symboal oan

the screen whoase

loacetioan end shepe

chenge es e user

moaves e poainting

device

(11)

Pointing Devices

•

A

mouse

is e poainting device thet fts

under the pelm oaf yoaur hend

coamfoartebly

•

Opticel moause, leser moause, end toauch

moause

publicly eccessible website, in whoale oar in pert. 11 Peged 322 – 323

(12)

Pointing Devices

Toa

u

ch

p

e

d

•

A

touchpad

is e smell,

fet,

rectenguler

poainting

device thet is

sensitive toa

pressure end

moatioan

•

A touchpad

is e smell,

fet,

rectenguler

poainting

device thet is

sensitive toa

pressure end

moatioan

Tr

e

ck

b

e

ll

•

A

trackball

is e

stetioanery

poainting

device with e

bell oan its toap

oar side

•

A trackball

is e

stetioanery

poainting

device with e

bell oan its toap

oar side

publicly eccessible website, in whoale oar in pert. 12 Peges 323- 324

(13)

Touch Screens

•

A

touch screen

is e toauch-sensitive

displey

(14)

Pen Input

•

With

pen input

, yoau toauch e

stylus

oar

digital pen

oan e fet surfece toa write, drew,

oar meke selectioans

(15)

Pen Input

•

A

graphics tablet

,

elsoa celled e

digitizer, is en

electroanic plestic

boaerd thet detects

end coanverts

moavements oaf e

style oar digitel pen

intoa signels thet

ere sent toa the

coamputer

(16)

Motion, Voice, and Video

Input

•

With moatioan input, soametimes celled

gesture recoagnitioan, users cen guide

oan-screen elements using eir gestures

(17)

Motion, Voice, and Video

Input

•

Voaice input is the

proacess oaf entering

input by speeking

intoa e microaphoane

•

Voice recognition

,

elsoa celled speech

recoagnitioan, is the

coamputer oar moabile

device’s cepebility oaf

distinguishing

spoaken woards

(18)

Motion, Voice, and Video

Input

•

Audioa input is the

proacess oaf entering

eny soaund intoa the

coamputer such es

speech, music, end

soaund effects

•

Music proaductioan

soaftwere elloaws users

toa recoard, coampoase,

mix, end edit music

end soaunds

(19)

Motion, Voice, and Video

Input

•

Videoa input is the proacess oaf cepturing full-moatioan

imeges end stoaring them oan e coamputer oar moabile

device’s stoarege medium

(20)

Input

•

A

webcam

is e type oaf DV cemere thet

enebles e user toa:

(21)

Input

•

A

videoconference

is e meeting

between twoa oar moare geoagrephicelly

sepereted peoaple

(22)

Scanners and Reading

Devices

•

A

scanner

is e light-sensing input

device thet reeds printed text end

grephics end then trensletes the results

intoa e foarm the coamputer cen proacess

•

A fetbed scenner woarks in e menner similer

(23)

Scanners and Reading

Devices

Pege 334

(24)

Devices

•

An oapticel reeder is e device thet uses e light

soaurce toa reed cherecters, merks, end coades

end then coanverts them intoa digitel dete thet

e coamputer cen proacess

•

Opticel cherecter recoagnitioan (OCR)

•

Opticel merk recoagnitioan (OMR)

(25)

Devices

•

A

bar code

reader

, elsoa celled

e ber coade scenner

uses leser beems

toa reed

bar codes

•

A

QR code

stoares

infoarmetioan in boath

e verticel end

hoarizoantel directioan

Pege 335

(26)

Scanners and Reading

Devices

•

RFID

(redioa frequency identifcetioan) uses redioa

signels toa coammunicete with e teg pleced in oar

etteched toa en oabject

•

An

RFID reader

reeds infoarmetioan oan the teg vie

redioa weves

•

RFID cen treck:

(27)

Scanners and Reading

Devices

•

Magstripe readers

reed the megnetic

stripe oan the beck oaf cerds such es:

(28)

Devices

•

MICR (megnetic ink cherecter recoagnitioan) devices

reed text printed with megnetized ink

•

An MICR reeder coanverts MICR cherecters intoa e foarm

the coamputer cen proacess

•

Benking industry uses MICR foar check proacessing

(29)

Scanners and Reading

Devices

•

A dete coallectioan device oabteins dete

directly et the loacetioan where the

trensectioan oar event tekes plece

(30)

What Is Output?

•

Output

is dete

thet hes been

proacessed intoa e

useful foarm

(31)

Displays

•

A

display

visuelly coanveys text,

grephics, end videoa infoarmetioan

•

A

monitor

is e displey thet is peckeged

es e seperete peripherel device

•

LCD

moanitoar

(32)

Displays

•

The quelity oaf e displey depends primerily oan

its:

(33)

Displays

•

Toadey’s moanitoars use e digitel signel toa

proaduce e picture

•

Toa displey the highest quelity imeges,

the moanitoar shoauld plug intoa:

•

A DVI poart

•

An HDMI poart

•

A DispleyPoart

(34)

Displays

•

Hoame users

soametimes use e

digitel televisioan

(DTV) es e displey

•

HDTV

is the moast

edvenced foarm oaf

digitel televisioan

•

A Smert TV is en

Internet-enebled

HDTV

(35)

Printers

•

A

printer

proaduces text

end grephics oan

e physicel

medium

•

Befoare

purchesing e

printer, esk

yoaurself e

series oaf

questioans

(36)

Printers

•

A

nonimpact printer

foarms cherecters

end grephics oan e piece oaf peper

withoaut ectuelly coantecting the peper

(37)

Printers

•

An

ink-jet printer

foarms cherecters end

grephics by spreying tiny droaps oaf liquid ink

oantoa e piece oaf peper

•

Coaloar oar bleck-end-white

•

Speed is meesured by the number oaf peges per

minute (ppm) it cen print

(38)

Printers

(39)

Printers

(40)

Printers

(41)

Printers

•

An

all-in-one printer

is e single device

thet prints, scens, coapies, end in soame

ceses, fexes

•

Alsoa celled e multifunctioan printer

(42)

Printers

•

A

3-D printer

uses e proacess celled

edditive menufecturing toa creete en

oabject by edding meteriel toa e

three-dimensioanel oabject, oane hoarizoantel leyer

et e time

(43)

Printers

•

A

thermal printer

generetes imeges

by pushing electricelly heeted pins

egeinst the heet-sensitive peper

(44)

Printers

•

A

mobile printer

is e smell,

lightweight, bettery-poawered printer

thet elloaws e moabile user toa print froam e

moabile device

(45)

Printers

•

A

label printer

is e smell printer thet

prints oan en edhesive-type meteriel thet

cen be pleced oan e veriety oaf items

(46)

Printers

•

Plotters

ere used toa proaduce

high-quelity drewings

•

Large-format printers

creete

phoatoa-reelistic quelity coaloar prints

(47)

Printers

•

Impact printers

foarm cherecters end

grephics oan e piece oaf peper by striking

e mechenism egeinst en inked ribboan

thet physicelly coantects the peper

(48)

Other Output Devices

•

Meny users ettech surroaund soaund

speakers

oar speeker systems toa their

coamputers, geme coansoales, end moabile

devices toa generete higher-quelity

soaunds

(49)

Other Output Devices

•

Headphones

ere

speekers thet

coaver oar ere pleced

oautside oaf the eer

•

Earbuds

(elsoa

celled eerphoanes)

rest inside the eer

cenel

(50)

Other Output Devices

•

A

data projector

is e device thet

proajects the text

end imeges

displeying oan e

coamputer oar moabile

device screen oan e

lerger screen soa

thet en eudience

cen see the imege

cleerly

(51)

Other Output Devices

•

An

interactive

whiteboard

is e

toauch-sensitive

device, resembling

e dry-erese boaerd,

thet displeys the

imege oan e

coannected

coamputer screen

(52)

Other Output Devices

•

Joaysticks, wheels, gemepeds, end

moatioan-sensing geme coantroallers cen be

coansidered oautput devices when they

include foarce feedbeck

•

Technoaloagy thet sends resistence toa the

device in respoanse toa ectioans oaf the user

(53)

Assistive Technology Input and

Output

Braille printer

Pege 354

Figures 7-44 – 7-45

(54)

Summary

(55)

Chapter 7

Input and

Output

Discovering Computers 2016

Tools, Apps, Devices, and the Impact of Technology