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2. What Is Input? What isinput? Data or instructions entered into memory of computer Input device is any hardware component used to enter data or instructions Levi Krein Associate Professor, CIS
3. What Is Input? What are the two types of input? Data Raw unprocessed text, numbers, images, audio, and video Instructions Programs Commands User responses Levi Krein Associate Professor, CIS
4. What Are Input Devices
5. How is the keyboard divided? Typing area Numeric keypad Function keys, special keys that issue commands The keyboard is the most common input device on computers. Levi Krein Associate Professor, CIS
6. Types of Keyboards
7. The Keyboard What is theinsertion point? Blinking vertical bar that indicates where next character you type will display Pointerchanges location and shape as you move mouse or other pointing device Block arrow Pointing hand pointer insertion point Levi Krein Associate Professor, CIS
8. The Keyboard What is anergonomic keyboard? Designed to minimize strain on hands and wrists Ergonomics incorporates comfort, efficiency, and safety into design of items in workplace; user friendly devices Levi Krein Associate Professor, CIS
9. Pointing Devices
10. What is amouse? A pointing device that fits under palm of hand Pointing device controls movement of pointer, also called mouse pointer A mouse can be wired or wireless An optical mouse senses light to detect mouse’s movement Levi Krein Associate Professor, CIS
11. What is atrackball? Stationary pointing device with a ball on its top To move pointer, rotate ball with thumb, fingers, or palm of hand Levi Krein Associate Professor, CIS
12. What is atouchpad or touch screen? A monitor or small, flat, rectangular surface sensitive to pressure and motion Levi Krein Associate Professor, CIS
13. What is apointing stick? Apointing device shaped like pencil eraser positioned between keys on keyboard Levi Krein Associate Professor, CIS
14. Types of game controllers Joystickis vertical lever mounted on a base Wheelis steering-wheel-type input device Pedal simulates car brakes and accelerator Levi Krein Associate Professor, CIS
15. What is pen input? Levi Krein Associate Professor, CIS With pen input, you touch a stylus or digital pen on a flat surface to write, draw, or make selections
16. What is Voice Input? Voice input is the process of entering data by speaking into a microphone Voice recognition is the computer’s capability of distinguishing spoken words Levi Krein Associate Professor, CIS
17. What is aMIDI input? Audio input from a musical instrument (musical instrument digital interface). External device, such as electronic piano keyboard, to input music and sound effects Levi Krein Associate Professor, CIS
18. What is aportable keyboard? An input devices for mobile users Full-sized keyboard you conveniently attach to and remove from PDA Levi Krein Associate Professor, CIS
19. What is adocking station? External device that holds mobile computer Provides connections to peripherals Levi Krein Associate Professor, CIS
20. What is adigital camera? Allows you to take digital pictures Images viewable immediately on camera Levi Krein Associate Professor, CIS
21. Two factors affect the quality of digital camera photos: Pixel(pictureelement) is single point in electronic image Greater the number of pixels, the better the image quality
22. Camera Shopping? Like Consumer Reports, cnet reviews cameras, TVs, computers etc. Click to check out cnet. Levi Krein Associate Professor, CIS
23. What isvideo input? The process of entering full-motion mages into computer Video capture cardis adapter card that converts analog video signal into digital signal that computer can use Digital video (DV) camerarecords video as digital signals Levi Krein Associate Professor, CIS
24. Video Input Video: Video Editing on Your Computer CLICK TO START
25. What is a Web cam? A digital video camera that displays its output on a Web page, it can:
26. What isvideoconferencing? Two or more geographically separated people who use a network or the Internet to transmit audio and video data Whiteboard is another window on screen that can display notes and drawings simultaneously on all participants’ screens Levi Krein Associate Professor, CIS
27. What is a scanner? Light-sensing device that reads printed text and graphics Used for image processing, converting paper documents into electronic images
28. What is anoptical reader? Next A device that uses light source to read characters, marks, and codes and then converts them into digital data Optical character recognition (OCR)reads characters & translates them into ASCII (bytes) characters Optical mark recognition (OMR) reads hand-drawn pencil marks, such as small circles Bar code scanner Levi Krein Associate Professor, CIS
29. What is aturnaround document? Document that you return to the company that sent it Portion you return has information printed in OCR characters Levi Krein Associate Professor, CIS
30. What is abar code scanner? Uses laser beams to read bar codes Levi Krein Associate Professor, CIS
31. What is abar code? Identification code that consists of a set of vertical lines and spaces of different widths UniversalProductCode(UPC) Levi Krein Associate Professor, CIS
32. What is a magnetic-ink character recognition (MICR) reader? Can read text printed with magnetized ink Banking industry almost exclusively uses MICR for check processing Levi Krein Associate Professor, CIS
33. Other Input Devices What is anRFID reader? Reads information on the tag via radio waves Can be handheld devices or mounted in a stationary object Levi Krein Associate Professor, CIS
34. What is a Magnetic stripe card readers? Devices that read the magnetic stripe on the back of cards such as:
35. What is adata collection device? Obtains data directly at location where transaction or event takes place Warehouses; outdoors; remote areas Transmits (uploads) data over a network or Internet; wired or wireless Levi Krein Associate Professor, CIS
36. What is apoint of sale (POS) terminal? Records purchases, processes credit or debit cards, and updates inventory Swipe credit or debit card through card readerc—creads customer’s personal data from magnetic strip Levi Krein Associate Professor, CIS
37. Terminals What is anautomatic teller machine (ATM)? Self-service banking machine that connects to host computer through network ATM crime Levi Krein Associate Professor, CIS
38. What isbiometrics? 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 Levi Krein Associate Professor, CIS
39. More examples of biometric technology Voice verification system compares live speech with stored voice pattern Signature verification system recognizes shape of signature Iris recognition systemreads 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 Levi Krein Associate Professor, CIS
40. CBS Biometrics Levi Krein Associate Professor, CIS
41. What input devices are available for those with physical limitations? Keyguardallows users to rest hands on keyboard without accidentally pressing keys Head-mounted pointer controls pointer on screen New developments includegesture recognition and computerized implant devices Levi Krein Associate Professor, CIS
42. Chapter 5 Complete Levi Krein Associate Professor, CIS