1. Chapter 5 Input

2. Chapter 5 Objectives Define input List the characteristics of a keyboard Describe different mouse types and how they work Summarize how various pointing devices work Explain how voice recognition works Describe various input devices for PDAs, smart phones, and Tablet PCs Explain how a digital camera works Describe uses of PC video cameras, Web cams, and video conferencing Discuss various scanners and reading devices and how they work Explain the types of terminals Summarize the various biometric devices Identify alternative input devices for physically challenged users Next

3. What Is Input? What is input? p. 234 and 236 Fig. 5-1 Next  Input device is any hardware component that allows users to enter data and instructions  Any data or instructions entered into memory of computer

4. What Is Input? What are the two types of input? p. 234 Next  Unprocessed text and numbers  Images or Graphics  Audio  Video  Instructions  Programs - made up of instructions that are processed in memory to convert data into information  Commands - User issued request for the computer to perform some action  User responses - Replying to a question asked by the program instructions  Data – Single fact about something

5. Input Devices Any hardware component that allows users to enter data or instructions into a computer.

6. Keyboards The primary input device for the personal computer

7. Keyboards QWERTY DVORAK

8. Types of Keyboards The Kinesis Keyboard 104 Key Keyboard 102 Key Multimedia Keyboard

9. The Keyboard How is the keyboard divided? p. 236 Fig. 5-2 Next  Typing area  Numeric keypad  Function keys, special keys that issue commands

10. The Keyboard What is the insertion point? p. 237 Fig. 5-3 Next  Blinking vertical bar that indicates where next character you type will display  Pointer changes location and shape as you move mouse or other pointing device

11. The Keyboard What is a cordless keyboard? p. 238 Fig. 5-4 Next  Communicate with a receiver attached to a port on the system unit

12. Pointing Devices Controls a pointer on-screen Mouse: Primary pointing device on personal computers

13. Mouse Mouse was originally invented at Xerox’s Palo Alto Research Center (PARC) in the late 70’s

14. Mice where first introduced to the public with the introduction of the Apple Macintosh in 1984 Mouse

15. Pointing Devices What is a mouse? p. 239 Fig. 5-5 Next  Pointing device that fits under palm of hand  Pointing device controls movement of pointer, also called mouse pointer  Mechanical mouse has rubber or metal ball on underside Click to view Web Link, click Chapter 5, Click Web Link from left navigation, then click Mouse below Chapter 5 mouse buttons mouse pad ball wheel button

16. Primary pointing device – that moves a cursor on screen corresponding to the movement of the mouse by the user Mouse

17. Types of mice: Roller Ball Track Ball OpticalLaser Light Pen Graphic Stylus Mouse

18. Pointing Devices What is an optical mouse? p. 239 Fig. 5-6 Next  No moving mechanical parts inside  Senses light to detect mouse’s movement  More precise than mechanical mouse  Connects using a cable, or wireless

19. Tilt wheel Press wheel button Press wheel button Right- drag Right- click Triple- click Double- click Pointing Devices What are common mouse operations? p. 240 Fig. 5-7 Next Point Click Drag Rotate wheel

20. 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

21. Other Pointing Devices What is a trackball? p. 241 Fig. 5-8 Next  Stationary pointing device with a ball on its top or side  To move pointer, rotate ball with thumb, fingers, or palm of hand

22. Other Pointing Devices What are a touchpad and a pointing stick? p. 241 - 242 Figs. 5-9—5-10 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 Click to view Web Link, click Chapter 5, Click Web Link from left navigation, then click Touchpad below Chapter 5

23. Other Pointing Devices What are a joystick and a wheel? p. 242 Fig. 5-11 Next  Joystick is vertical lever mounted on a base  Wheel is steering-wheel-type input device  Pedal simulates car brakes and accelerator

24. Other Pointing Devices What is a control pad and a gamepad? p. 242 Fig. 5-12 Next  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 Link from left navigation, then click iPod Click Wheel below Chapter 5

25. Other Pointing Devices What is a light pen? p. 242 Next  Handheld input device that can detect light  Press light pen against screen surface and then press button on pen

26. Other Pointing Devices What is a touch screen? p. 243 Fig. 5-13 Next  Touch areas of screen with finger  Often used with kiosks Click to view Web Link, click Chapter 5, Click Web Link from left navigation, then click Touch Screen below Chapter 5

27. Keyboard and Pointing Devices What is a stylus and a digital pen? p. 243 - 244 Fig. 5-14 and 5-15 Next  Looks like a ballpoint pen, but uses pressure to write text and draw lines  Used with graphics tablets, flat electronic boards Click to view Web Link, click Chapter 5, Click Web Link from left navigation, then click Pen Input below Chapter 5

28. Voice Input How does voice recognition work? p. 245 Fig. 5-18 Next Click to view Web Link, click Chapter 5, Click Web Link from left navigation, then click Voice Input below Chapter 5

29. Voice Input What is a MIDI (musical instrument digital interface)? p. 246 Fig. 5-19 Next  External device, such as electronic piano keyboard, to input music and sound effects

30. PDAs, Tablet PCs, and Smart Phones How is data entered into a PDA? p. 247 Fig. 5-20 Next

31. PDAs, Tablet PCs, and Smart Phones What is a portable keyboard and a docking station? p. 248 Fig. 5-21 Next  A portable keyboard is a full-sized keyboard you conveniently attach to and remove from PDA  A docking station is an external device that holds a mobile computer

32. PDAs, Tablet PCs, and Smart Phones What is a smart phone? p. 248 - 249 Fig. 5-22 Next  Users can input and send text messages, graphics, pictures, video clips, and sound files  Many have a built-in or attachable camera

33. PDAs, Tablet PCs, and Smart Phones What is a Tablet PC? p. 249 – 250 Fig. 5-23 Next  Mobile computer that includes handwriting recognition software  Primary input device is a pressure-sensitive digital pen

34. Digital Cameras What is a digital camera? p. 250 Fig. 5-24 Next  Allows you to take digital pictures  Images viewable immediately on camera  Download to computer  Post pictures to Web

35. Digital Cameras How does a digital camera work? p. 251 Fig. 5-25 Next

36. Digital Cameras What is resolution? p. 252 Fig. 5-26 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

37. Video Input What is video input? p. 253 Fig. 5-27 Next  Process of entering full-motion images into computer  Video capture card is adapter card that converts analog video signal into digital signal that computer can use  Digital video (DV) camera records video as digital signals

38. Video Input What is a PC video camera and a Web cam? p. 253 Fig. 5-28 Next  PC video camera c — c digital video camera used to capture video and still images, and to make video telephone calls on Internet  Also called PC camera  Web cam c — c video camera whose output displays on a Web page Click to view Web Link, click Chapter 5, Click Web Link from left navigation, then click Digital Video Cameras below Chapter 5

39. Video Input What is video conferencing? p. 254 Fig. 5-29 Next  Whiteboard is another window on screen that can display notes and drawings simultaneously on all participants’ screens  Two or more geographically separated people who use network or Internet to transmit audio and video data

40. Scanners and Reading Devices What is a scanner? p. 255 Fig. 5-30 Next  Light-sensing device that reads printed text and graphics  Used for image processing, converting paper documents into electronic images Click to view Web Link, click Chapter 5, Click Web Link from left navigation, then click Scanners below Chapter 5 Drum Flatbed Pen or Handheld Sheet-fed

41. Scanners and Reading Devices How does a flatbed scanner work? p. 256 Fig. 5-31 Next Step 1: Place the document to be scanned face down on the glass window. Using buttons on the scanner or the scanner program, start the scanning process. Step 2: The scanner converts the document content to digital information, which is transmitted through the cable to the memory of the computer. Step 3: Once in the memory of the computer, users can display the image, print it, e-mail it, include it in a document, or place it on a Web page.

42. Scanners and Reading Devices What is an optical reader? p. 257 Fig. 5-32 Next  Optical character recognition (OCR) reads characters in OCR font  Optical mark recognition (OMR) reads hand-drawn pencil marks, such as small circles  Device that uses light source to read characters, marks, and codes and then converts them into digital data

43. Scanners and Reading Devices What is a turnaround document? p. 257 Fig. 5-33 Next  Document that you return to the company that sent it  Portion you return has information printed in OCR characters

44. Scanners and Reading Devices What is a bar code reader? p. 258 Fig. 5-34 Next  Uses laser beams to read bar codes

45. Scanners and Reading Devices What is a bar code? p. 258 Fig. 5-35 Next  Identification code that consists of a set of vertical lines and spaces of different widths  Universal Product Code (UPC)

46. Other Input Devices What is an RFID reader? p. 259 Fig. 5-36 Next  Reads information on the tag via radio waves  Can be handheld devices or mounted in a stationary object

47. Other Input Devices What is a magnetic stripe card reader? p. 260 Fig. 5-37 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

48. What is a magnetic-ink character recognition (MICR) reader? Scanners and Reading Devices p. 260 Fig. 5-38 Next  Can read text printed with magnetized ink  Banking industry almost exclusively uses MICR for check processing

49. Scanners and Reading Devices What is a data collection device? p. 261 Fig. 5-39 Next  Obtains data directly at location where transaction or event takes place  Transmits data over network or Internet

50. Terminals What is a point of sale (POS) terminal? p. 261 - 262 Fig. 5-40 Next  Records purchases, processes credit or debit cards, and updates inventory  Swipe credit or debit card through card reader  Reads customer’s personal data from magnetic strip

51. Terminals What is an automated teller machine (ATM)? p. 262 Fig. 5-41 Next  Self-service banking machine that connects to a host computer through a network

52. Biometric Input What is biometrics? p. 262 Fig. 5-42 and 5-43 Next  Authenticates person’s identity by verifying personal characteristic  Fingerprint scanner captures curves and indentations of fingerprint  Hand geometry system measures shape and size of person’s hand Click to view Web Link, click Chapter 5, Click Web Link from left navigation, then click Biometric Input below Chapter 5

53. Biometric Input What are examples of biometric technology? p. 263 – 264 Figs. 5-44—5-45 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

54.  Enhanced keyboard or ergonomic keyboard  Mouse  Stylus for PDA or smart phone  Joystick or wheel  30-bit 600 x 1200 ppi color scanner  3-megapixel digital camera  Headphones that include a microphone  PC video camera Putting It All Together What are recommended input devices for home users? p. 265 Fig. 5-46 Next

55.  Enhanced keyboard or ergonomic keyboard  Mouse  Stylus and portable keyboard for PDA or smart phone, or digital pen for Tablet PC  36-bit 600 x 1200 ppi color scanner  3-megapixel digital camera  Headphones that include a microphone  PC video camera Putting It All Together p. 265 Fig. 5-46 Next What are recommended input devices for small office/home office users (SOHO)?

56.  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 Putting It All Together What are recommended input devices for mobile users? p. 265 Fig. 5-46 Next

57.  Enhanced keyboard or ergonomic keyboard  Mouse  Stylus and portable keyboard for PDA or smart phone  Pen for graphics tablet  48-bit 1200 x 1200 ppi color scanner  6- to 8-megapixel digital camera  Headphones that include a microphone  PC video camera Putting It All Together What are recommended input devices for power users? p. 265 Fig. 5-46 Next

58.  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  42-bit 1200 x 1200 ppi color scanner  OCR/OMR readers, bar code readers, MICR reader, or data collection devices  Microphone  Video camera for video conferences  Fingerprint scanner or other biometric device Putting It All Together p. 265 Fig. 5-46 Next What are recommended input devices for large business users?

59. Input Devices for Physically Challenged Users What input devices are available for those with physical limitations? p. 266 Figs. 5-47 Next  Keyguard allows users to rest hands on keyboard without accidentally pressing keys  Head-mounted pointer controls pointer on screen  New developments include gesture recognition and computerized implant devices

60. Summary of Input Keyboard, mouse, and other pointing devices Voice input Input devices for PDAs, smart phones, and Tablet PCs Digital cameras Video Input Scanners and reading devices Terminals Biometric input Input devices for physically challenged users Chapter 5 Complete

61. Page 273 – Checkpoints Page 273 – Checkpoints Page 276 – Learn it Online # 7 Page 276 – Learn it Online # 7 Page 280 – Web Research # 3 Page 280 – Web Research # 3 Answer these questions: Answer these questions: Discuss RFID technology? What role you think it will play in our future? What do you see as good or bad about RFID? How would Biometrics benefit students? What might be the advantages and disadvantages of Biometrics for students? With the benefits and disadvantages in mind, would you be better off with or without Biometrics for students? Why? HOMEWORK – Chapter 5