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Chapter 5Input and Output- 61 slides -

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Chapter 5 Objectives

List the characteristicsof a keyboard

List the characteristicsof a keyboard

Summarize how these pointing devices

work: mouse, trackball, touchpad, pointing stick, joystick, wheel, audio player, control pad, gamepad, light pen, touch screen, stylus, and digital

pen

Summarize how these pointing devices

work: mouse, trackball, touchpad, pointing stick, joystick, wheel, audio player, control pad, gamepad, light pen, touch screen, stylus, and digital

pen

Describe other types of input, including voice input; input devices for PDAs, smart phones, and Tablet PCs; digital cameras; voice input;

scanners and reading devices; terminals; and biometric input

Describe other types of input, including voice input; input devices for PDAs, smart phones, and Tablet PCs; digital cameras; voice input;

scanners and reading devices; terminals; and biometric input

Describe the characteristics of LCD monitors, LCD screens, and CRT

monitors

Describe the characteristics of LCD monitors, LCD screens, and CRT

monitors

Summarize the various types of printersSummarize the various types of printers

Explain the characteristics of speakers, headphones and earphones;

fax machines and fax modems, multifunction peripherals, and data

projectors

Explain the characteristics of speakers, headphones and earphones;

fax machines and fax modems, multifunction peripherals, and data

projectors

Identify input and output options for physically challenged users

Identify input and output options for physically challenged users

Next

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What Is Input?

What is input?

p. 166 - 167 Fig. 5-1 Next

Input device is any hardware component used to enter data or instructions into a computer

Data or instructions entered into the memory of computer

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Keyboard and Pointing Devices

What is a keyboard?

p. 168 Fig. 5-2 Next

Input device that contains keys users press to enter data into a computer

Includes typing area, numeric keypad, and function keys

Can be cordless or built-in

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Keyboard and Pointing Devices

What is a mouse?

p. 169 Fig. 5-3a Next

Pointing device that fits under the palm of your hand Pointing device controls

movement of pointer, also called the pointer

Mechanical mouse has rubber or metal ball on its underside

Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation, then click Mousebelow Chapter 5

mouse buttons

mouse pad

ball

wheel button

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Keyboard and Pointing Devices

What is an optical mouse?

p. 169 Fig. 5-3b Next

No moving mechanical parts inside

Senses light to detect mouse’s movement

More precise than mechanical mouse

More expensive than a mechanical mouse

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Video: Alternatives to Your Boring Mouse

Beyond the mouse; cool alternatives to mousing around

low quality(click to start)

high quality(click to start)

Next

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Keyboard and Pointing Devices

What is a trackball?

p. 170 Fig. 5-4 Next

Stationary pointing device with a ball on its top or side

To move pointer, rotate ball with thumb, fingers, or palm of hand

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Keyboard and Pointing Devices

What are a touchpad and a pointing stick?

p. 170 Figs. 5-5—5-6 Next

Touchpad is small, flat, rectangular pointing device sensitive to pressure and motion

Pointing stick is pointing device shaped like pencil eraser positioned between keys on keyboard

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Keyboard and Pointing Devices

What are a joystick and a wheel?

p. 171 Fig. 5-7 Next

Joystick is vertical lever mounted on a base Wheel is steering-wheel-type input device

Pedal simulates car brakes and accelerator

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Other Pointing Devices

What is a control pad and a gamepad?

p. 171 Fig. 5-8

Control pad on an audio player allows users to scroll through music, adjust volume, and customize settings

Gamepad a pointing device that controls the movement and actions of players or objects in games

Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation, then click iPod Click Wheel below Chapter 5

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Keyboard and Pointing Devices

What is a light pen?

p. 171 Next

Handheld input device that can detect the presence of light Press light pen against screen surface and then press

button on pen

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Keyboard and Pointing Devices

What is a touch screen?

p. 171 Fig. 5-9

Touch areas of screen with finger

Often used with kiosks

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Keyboard and Pointing Devices

What is a stylus and a digital pen?

p. 172 Fig. 5-10 Next

Looks like a ballpoint pen, but uses pressure to write text and draw lines

Used with graphics tablets, flat electronic boards

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Other Input Devices

What is voice input? Entering data by speaking into a microphone Voice recognition or speech recognition is the

computer’s capability to distinguish spoken words

p. 173 Next

Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation, then click Voice Inputbelow Chapter 5

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Other Input Devices

p. 173 Fig. 5-13

What is audio input? Entering sounds into a computer - speech,

music, and sound effects MIDI - standard defining how digital musical

devices represent sound electronically

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Other Input Devices

How is data entered into a PDA?

p. 174 Fig. 5-14 Next

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Other Input Devices

What is a smart phone?

p. 175 Next

Users can input and send text messages, graphics, pictures, video clips, and sound files

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PDAs, Tablet PCs, and Smart PhonesWhat is a Tablet PC?

p. 175 Fig. 5-15 Next

Mobile computer that includes handwriting recognition software

Primary input device is a pressure-sensitive digital pen

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Other Input Devices

What is a digital camera?

p. 175 Fig. 5-16 Next

Allows you to take digital pictures

Images viewable immediately on camera Download to

computer Post pictures

to Web

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Other Input Devices

What is resolution?

p. 175 Next

Sharpness and clarity of image The higher the resolution, the better the image

quality, but the more expensive the camera Pixel (picture element) is single point in electronic

image Greater the number of pixels, the better the image

quality

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Other Input Devices

What is video input?

p. 176 Next

Process of storing full-motion images on a computer’s storage medium

Digital video (DV) camera records video as digital signals

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Other Input Devices

What is a PC video camera and a Web cam?

p. 176 Fig. 5-17 Next

PC video camerac—cDV camera used to capture video and still images, and to make video telephone calls on Internet Also called PC camera

Web camc—cvideo camera that displays its output on a Web page

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Other Input Devices

What is video conferencing?

p. 176 Fig. 5-18 Next

Two or more geographically separated people who use network on Internet to transmit audio and video data

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Other Input Devices

What is a scanner?

p. 177 Fig. 5-19 Next

Light-sensing device that reads printed text and graphics Used for image processing, converting paper

documents into electronic images

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Other Input Devices

What is a turnaround document?

p. 177 Fig. 5-20 Next

Document that you return to the company that sent it Portion you return has

information printed in OCR characters

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Other Input Devices

What is an optical reader?

p. 178 Fig. 5-21 Next

Optical character recognition (OCR) reads characters in OCR font

Optical mark recognition (OMR) reads hand-drawn pencil marks, such as small circles

Bar code reader

Device that uses light source to read characters, marks, and codes and then converts them into digital data

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Other Input Devices

What is an RFID reader?

p. 178 Fig. 5-22 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 a magnetic stripe card reader?

p. 179 Fig. 5-23 Next

Reads the magnetic stripe on the back of a credit card

Exposure to a magnetic field can erase the contents of a card’s magnetic stripe

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What is a magnetic-ink character recognition (MICR) reader?

Other Input Devices

p. 179 Fig. 5-24

Can read text printed with magnetized ink Banking industry almost exclusively uses MICR

for check processing

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Other Input Devices

What is a point of sale (POS) terminal?

p. 180 Fig. 5-25

Records purchases, processes credit or debit cards, and updates inventory

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Other Input Devices

What is an automated teller machine (ATM)?

p. 180 Fig. 5-26 Next

Self-service banking machine that connects to a host computer through a network

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Other Input Devices

What is biometrics?

p. 181 Fig. 5-27

Authenticates person’s identity by verifying a personal characteristic Fingerprint scanner captures

curves and indentations of fingerprint

Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation, then click Biometric Input below Chapter 5

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Other Input Devices

What are examples of biometric technology?

p. 181 Fig. 5-28 Next

Voice verification system compares live speech with stored voice pattern

Signature verification system recognizes shape of signature

Iris recognition system reads patterns in blood vessels in back of eye Biometric data is sometimes stored

on smart card, which stores personal data on microprocessor embedded in card

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What is Output?

What is output?

p. 182 Fig. 5-29 Next

Data that has been processed into a useful form,called information Output device is any hardware component that can convey

information to one or more people

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Display Devices

What is a display device?

p. 183 Fig. 5-31

Output device that visually conveys information Information on display device sometimes

called soft copy Monitor houses display device as separate peripheral

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Display Devices

What is an LCD monitor?

p. 184 - 185 Fig. 5-30 Next

Uses liquid crystal display Have a small footprint Mobile devices that contain

LCD displays include Notebook computer,

Tablet PC, PDA, and Smart Phone

Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation, then click LCD Technology below Chapter 5

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Display Devices

What is a plasma monitor?

p. 185 Fig. 5-32

Displays image by applying voltage to layer of gas Larger screen size and higher display quality than LCD, but

are more expensive

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Display Devices

What is a CRT monitor?

p. 186 Fig. 5-33

Contains cathode-ray tube (CRT)

Common sizes are 15, 17, 19, 21, and 22 inches Viewable size is diagonal

measurement of actual viewing area

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Display Devices

What determines the quality of a CRT monitor?

p. 186

Screen resolution

Refresh rate is speed at which monitor redrawsimages on screen

Text created with a smaller dot pitch is easierto read

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Printers

What is a printer?

p. 187 Fig. 5-34 Next

Output device that produces text and graphics on a physical medium

Purchasing a printer

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Printers

What are the various ways to print documents and pictures?

p. 188 Fig. 5-35

various ways to

print

printercable

dockingstation

mediacard

cable

wirelessprinters

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Printers

What is a nonimpact printer?

p. 189 Fig. 5-36 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

Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation, then click Ink-Jet Printersbelow Chapter 5

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Printers

What is a photo printer?

p. 190 Fig. 5-37 Next

Color printer that produces photo-lab-quality pictures Many photo printers have a built-in card slot

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Printers

What is a laser printer?

p. 190 - 191 Fig. 5-38 Next

High-speed, high-quality nonimpact printer

Prints text and graphics in very high-quality resolution, ranging from 1,200 to 2,400 dpi

Typically costs more than ink-jet printer, but is much faster

Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation, then click Laser Printersbelow Chapter 5

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Printers

What is a thermal printer?

p. 191 Fig. 5-39 Next

Generates images by pushing 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

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Printers

What is a mobile printer?

p. 192 Fig. 5-40 Next

Small, lightweight, battery-powered printer that allows mobile user to print from notebook computer, Tablet PC, PDA, or smart phone while traveling

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Printers

What is a plotter?

p. 192 Fig. 5-41 Next

Sophisticated printer used to produce high-quality drawings

Large-format printer creates photo-realistic-qualitycolor prints

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Printers

What is an impact printer?

p. 192 - 193 Fig. 5-42 Next

Forms characters by striking mechanism against inked ribbon that contacts paper Dot-matrix printer produces

printed images when tiny wire pins strike ribbon

Line printer prints entire lineat a time

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Other Output Devices

What is an audio output device?

p. 193 Fig. 5-43

Computer component that produces music, speech, or other sounds

Speakers, earphones, and earbuds are common devices

Click to view Web Link,click Chapter 5, Click Web Linkfrom left navigation, then click Earphones below Chapter 5

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Video: Wired Cellular Headsets

A guide to the best cellular headsets

low quality(click to start)

high quality(click to start)

Next

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Other Output Devices

What is voice output?

p. 194 Next

Computer talks to you through speakers on computer Internet telephony allows you to have conversation

over Web

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Other Output Devices

What is a facsimile (fax) machine?

p. 194 Fig. 5-44 Next

Device that transmits and receives documents over telephone lines

What is a fax modem? Modem that allows you to send and receive electronic

documents as faxes

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Other Output Devices

What is a multifunction peripheral?

p. 194 Fig. 5-45 Next

Provides functionality of printer, scanner, copy machine, and fax machine

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Other Output Devices

What is a data projector?

p. 195 Fig. 5-46

Device that takes image from computer screen and projects it onto larger screen

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Putting It All Together

What are suggested output devices for the home user?

p. 196 Fig. 5-47 Next

Home User Input Device Output Device

• Enhanced keyboard or ergonomic keyboard• Mouse• Stylus for PDA or smart phone• Joystick or wheel• Color scanner• 3-megapixel digital camera• Headphones that include a microphone• PC video camera

• 17- or 19-inch color LCD monitor• Ink-jet color printer; or• Photo printer• Speakers• Headphones or earphones

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Putting It All Together

What are suggested output devices for the small office/home office user?

p. 196 Fig. 5-47 Next

SOHO User Input Device Output Device

• Enhanced keyboard or ergonomic keyboard• Mouse• Stylus and portable keyboard for PDA or smart phone, or digital pen for Tablet PC• Color scanner• 3-megapixel digital camera• Headphones that include a microphone• PC video camera

• 19- or 21-inch LCD monitor• Color LCD screen on Tablet PC, PDA,or smart phone• Multifunction peripheral; or • Ink-jet color printer; or• Laser printer (black-and-white or color)• Fax machine• Speakers

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Putting It All Together

What are suggested output devices for the mobile user?

p. 196 Fig. 5-47

Mobile User Input Device Output Device

• Wireless mouse for notebook computer• Touchpad or pointing stick on notebook computer• Stylus and portable keyboard for PDA or smart phone, or digital pen for Tablet PC• 3- or 4-megapixel digital camera• Headphones that include a microphone• Fingerprint scanner for notebook computer

• 15.7-inch LCD screen on notebook computer• Color LCD screen on 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 or earphones• Data projector

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Putting It All Together

What are suggested output devices for the power user?

p. 196 Fig. 5-47 Next

Power User Input Device Output Device

• Enhanced keyboard or ergonomic keyboard• Mouse• Stylus and portable keyboard for PDA or smart phone• Pen for graphics tablet• Color scanner• 6- to 8-megapixel digital camera• Headphones that include a microphone• PC video camera

• 23-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

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Putting It All Together

What are suggested output devices for the large business user?

p. 196 Fig. 5-47

Large Business User Input Device Output Device

• Enhanced keyboard or ergonomic keyboard• Mouse• Stylus and portable keyboard for PDA or smart phone, or digital pen for Tablet PC• Touch screen• Light pen• Color scanner• OCR/OMR readers, bar code readers, or MICR reader• Microphone• Video camera for video conferences• Fingerprint scanner or other biometric device

• 19- or 21-inch LCD monitor• Color LCD screen on Tablet PC, PDA, or smart phone• High-speed laser printer• Laser printer, color• Line printer (for large reports from a mainframe)• Fax machine or fax modem• Speakers• Headphones or earphones• Data projector

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Input and Output Devices for Physically Challenged Users

What input devices are available for those with physical limitations?

p. 197 Fig. 5-48

Keyboards with larger keys Head-mounted pointer controls

pointer on screen

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Input and Output Devices for Physically Challenged Users

What other output options are available for visually impaired users?

p. 197 Fig. 5-49 Next

Change Window settings, such as increasing size or changing color of text to make words easier to read

Blind users can work with voice output

Braille printer outputs information in Braille onto paper

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Processing and organizinginput into output

Processing and organizinginput into output

Summary of Input and Output

Data and instructionsData and instructions

Various techniques of inputVarious techniques of input

Commonly used input devicesCommonly used input devices

Various methods of outputVarious methods of output

Commonly used output devicesCommonly used output devices

Chapter 5 Complete