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Objectives Overview. See Page 187 for Detailed Objectives. Objectives Overview. See Page 187 for Detailed Objectives. What Is Input?. Input is any data and instructions entered into the memory of a computer. Pages 188– 189 Figure 5-1. What Is Input?. Page 188.

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Objectives overview

Objectives Overview

See Page 187

for Detailed Objectives

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Objectives overview1

Objectives Overview

See Page 187

for Detailed Objectives

Discovering Computers Fundamentals, 2010 Edition Chapter 5


What is input

What Is Input?

  • Input is any data and instructions entered into the memory of a computer

Pages 188– 189

Figure 5-1

Discovering Computers Fundamentals, 2010 Edition Chapter 5


What is input1

What Is Input?

Page 188

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Keyboard and pointing devices

Keyboard and Pointing Devices

Page 189

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Keyboard and pointing devices1

Keyboard and Pointing Devices

  • A keyboard is an input device that contains keys users press to enter data and instructions into a computer

Page 190

Figure 5-2

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Keyboard and pointing devices2

Keyboard and Pointing Devices

  • Most desktop computer keyboards have…

Page 190

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Keyboard and pointing devices3

Keyboard and Pointing Devices

  • An ergonomic keyboard has a design that reduces the chance of wrist and hand injuries

  • Ergonomics incorporates comfort, efficiency, and safety into the design of the workplace

Click to view Web Link,click Chapter 5, Click Web Link from left navigation,

then click Ergonomics below Chapter 5

Page 190

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Keyboard and pointing devices4

Keyboard and Pointing Devices

  • Keyboards on mobile devices typically are smaller and/or have fewer keys

  • Some phones have predictive text input, which saves time when entering text using the phone’s keypad

Page 191

Figure 5-3

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Keyboard and pointing devices5

Keyboard and Pointing Devices

  • A mouse is a pointing device that fits under the palm of your hand comfortably

    • Most widely used pointing device on desktop computers

  • A mouse can be wired or wireless

Pages 191 – 192

Figure 5-4

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Keyboard and pointing devices6

Keyboard and Pointing Devices

Page 192

Figures 5-5 – 5-7

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Touch screens and touch sensitive pads

Touch Screens and Touch-Sensitive Pads

  • A touch screenis a touch-sensitive display device

Click to view Web Link,click Chapter 5, Click Web Link from left navigation,

then click Multi-Touch Screensbelow Chapter 5

Page 193

Figure 5-8

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Touch screens and touch sensitive pads1

Touch Screens and Touch-Sensitive Pads

Microsoft Surface

Touch-sensitive pads

Page 193

Figures 5-9 – 5-10

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Pen input

Pen Input

  • With pen input, you touch a stylus or digital pen on a flat surface to write, draw, or make selections

Page 194

Figure 5-11

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input

Other Types of Input

Page 195

Figure 5-12

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input1

Other Types of Input

  • Video games and computer games use a game controlleras the input device that directs movements and actions of on-screen objects

Click to view Web Link,click Chapter 5, Click Web Link from left navigation,

then click Wii Remote below Chapter 5

Pages 196 - 197

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input2

Other Types of Input

Page 196

Figure 5-13

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input3

Other Types of Input

  • A digital camerais a mobile device that allows users to take pictures and store them digitally

Page 197

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input4

Other Types of Input

Page 197

Figure 5-14

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input5

Other Types of Input

  • Two factors affect the quality of digital camera photos:

Page 198

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input6

Other Types of Input

  • Voice inputis the process of entering input by speaking into a microphone

  • Voice recognitionis the computer’s capability of distinguishing spoken words

  • Audio inputis the process of entering any sound into the computer

Page 198

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input7

Other Types of Input

  • Music production software allows users to record, compose, mix, and edit music and sounds

Page 198

Figure 5-15

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input8

Other Types of Input

  • Video inputis the process of capturing full-motion images and storing them on a computer’s storage medium

Page 199

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Video video editing on your computer

Video: Video Editing on Your Computer

CLICK TO START

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input9

Other Types of Input

  • A Web camis a type of digital video camera that enables a user to:

Page 199

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input10

Other Types of Input

  • A video conferenceis a meeting between two or more geographically separated people

Page 199

Figures 5-16 – 5-17

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input11

Other Types of Input

  • A flatbed scanner creates a file of the document in memory

    • Works in a manner similar to a copy machine

Page 200

Figure 5-18

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input12

Other Types of Input

  • Optical character recognition (OCR)involves reading characters from ordinary documents

  • A turnaround documentis a document you return to the company that creates and sends it

Page 200

Figure 5-19

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input13

Other Types of Input

  • Optical mark recognition (OMR) reads hand-drawn marks such as small circles or rectangles

  • An OMR device scans the documents and matches the patterns of light

Page 200

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input14

Other Types of Input

  • A bar code reader, also called a bar code scanner uses laser beams to read bar codes

Page 201

Figure 5-20

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input15

Other Types of Input

  • RFID (radio frequency identification) uses radio signals to communicate with a tag placed in or attached to an object

  • An RFID readerreads information on the tag via radio waves

  • RFID can track:

Page 201

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input16

Other Types of Input

  • Magnetic stripe card readersread the magnetic stripe on the back of cards such as:

Pages 201 - 202

Figure 5-22

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input17

Other Types of Input

  • MICR (magnetic ink character recognition) devices read text printed with magnetized ink

  • An MICR readerconverts MICR characters into a form the computer can process

  • Banking industry uses MICR for check processing

Page 202

Figure 5-23

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input18

Other Types of Input

  • Biometrics authenticates a person’s identity by verifying a personal characteristic

Pages 202 - 203

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input19

Other Types of Input

iris recognition system

fingerprint reader

Click to view Web Link,click Chapter 5, Click Web Link from left navigation,

then click Biometric Input

below Chapter 5

Pages 202 – 203

Figures 5-24 – 5-25

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Other types of input20

Other Types of Input

  • A terminal is a computer that allows users to send data to and/or receive information from a host computer

Pages 204 – 205

Figures 5-26 – 5-28

Discovering Computers Fundamentals, 2010 Edition Chapter 5


What is output

What Is Output?

  • Output is data that has been processed into a useful form

Pages 206 – 207

Figure 5-29

Discovering Computers 2010: Living in a Digital World Chapter 6


What is output1

What Is Output?

  • An output deviceis any type of hardware component that conveys information to one or more people

Page 206

Discovering Computers 2010: Living in a Digital World Chapter 6


Display devices

Display Devices

  • A display devicevisually conveys text, graphics, and video information

  • A monitor is packaged as a separate peripheral

    • LCD monitor

    • Widescreen

Click to view Web Link,click Chapter 5, Click Web Link from left navigation,

then click Widescreen LCD Monitors below Chapter 5

Pages 207 – 208

Figure 5-30

Discovering Computers 2010: Living in a Digital World Chapter 6


Display devices1

Display Devices

  • Liquid crystal display (LCD) uses a liquid compound to present information on a display device

Page 209

Discovering Computers 2010: Living in a Digital World Chapter 6


Display devices2

Display Devices

  • Plasma monitorsare display devices that use gas plasma technology and offer screen sizes up to 150 inches

Page 210

Figure 5-32

Discovering Computers 2010: Living in a Digital World Chapter 6


Display devices3

Display Devices

  • A CRT monitoris a desktop monitor that contains a cathode-ray tube

    • Have a much larger footprint than do LCD monitors

Page 210

Figure 5-33

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers

Printers

  • A printer produces text and graphics on a physical medium

  • Before purchasing a printer, ask yourself a series of questions

Page 211

Figure 5-34

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers1

Printers

Page 212

Figure 5-35

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers2

Printers

  • A nonimpact printerforms characters and graphics on a piece of paper without actually striking the paper

Page 213

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers3

Printers

  • An ink-jet printerforms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper

    • Color or black-and-white

    • Printers with a higher dpi (dots per inch) produce a higher quality output

Page 213

Figure 5-36

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers4

Printers

Page 214

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers5

Printers

Click to view Web Link,click Chapter 5, Click Web Link from left navigation,

then click Photo Printers below Chapter 5

Page 214

Figure 5-37

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers6

Printers

Click to view Web Link,click Chapter 5, Click Web Link from left navigation,

then click Laser Printers below Chapter 5

Pages 214 – 215

Figure 5-38

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers7

Printers

  • A multifunction peripheral(MFP) is a single device that prints, scans, copies, and in some cases, faxes

    • Sometimes called an all-in-one device

Page 215

Figure 5-39

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers8

Printers

  • A thermal printergenerates images by pushing electrically heated pins against the heat-sensitive paper

Pages 215 – 216

Figure 5-40

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers9

Printers

  • A mobile printeris a small, lightweight, battery-powered printer that allows a mobile user to print from a mobile device

Page 216

Figure 5-41

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers10

Printers

  • Plotters are used to produce high-quality drawings

  • Large-format printerscreate photo-realistic quality color prints on a larger scale

Page 216

Figure 5-42

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers11

Printers

  • Impact printersform characters and graphics on a piece of paper by striking a mechanism against an inked ribbon that physically contacts the paper

Page 217

Discovering Computers 2010: Living in a Digital World Chapter 6


Printers12

Printers

  • A dot-matrix printerproduces printed images when tiny wire pins on a print head mechanism strike an inked ribbon

  • A line printerprints an entire line at a time

Page 217

Figure 5-43

Discovering Computers 2010: Living in a Digital World Chapter 6


Other output devices

Other Output Devices

  • An audio output deviceproduces music, speech, or other sounds

Page 217

Figure 5-44

Discovering Computers 2010: Living in a Digital World Chapter 6


Other output devices1

Other Output Devices

  • Headphones are speakers that cover your head or are placed outside of the ear

  • Earbuds (also called earphones) rest inside the ear canal

Click to view Web Link,click Chapter 5, Click Web Link from left navigation,

then click Earbudsbelow Chapter 5

Page 218

Discovering Computers 2010: Living in a Digital World Chapter 6


Other output devices2

Other Output Devices

Page 218

Discovering Computers 2010: Living in a Digital World Chapter 6


Other output devices3

Other Output Devices

  • A data projector is a device that takes the text and images displaying on a computer screen and projects them on a larger screen

    • Digital light processing (DLP) projector

Page 218

Figure 5-45

Discovering Computers 2010: Living in a Digital World Chapter 6


Putting it all together

Putting It All Together

Page 219

Figure 5-47

Discovering Computers 2010: Living in a Digital World Chapter 6


Putting it all together1

Putting It All Together

Page 219

Figure 5-47

Discovering Computers 2010: Living in a Digital World Chapter 6


Putting it all together2

Putting It All Together

Page 219

Figure 5-47

Discovering Computers 2010: Living in a Digital World Chapter 6


Input and output devices for physically challenged users

Input and Output Devices for Physically Challenged Users

Head-mounted pointer

Braille printer

Pages 220 – 221

Figures 5-47 – 5-48

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Summary

Summary

Page 222

Discovering Computers Fundamentals, 2010 Edition Chapter 5


Objectives overview

Chapter 5 Complete


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