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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. What Is Input?. Page 188. Keyboard and Pointing Devices. Page 189. Keyboard and Pointing Devices.

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What Is Input?

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  1. 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, 2011 Edition Chapter 5

  2. What Is Input? Page 188 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  3. Keyboard and Pointing Devices Page 189 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  4. 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, 2011 Edition Chapter 5

  5. 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, 2011 Edition Chapter 5

  6. 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, 2011 Edition Chapter 5

  7. 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, 2011 Edition Chapter 5

  8. 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 Game Controllersbelow Chapter 5 Pages 196 - 197 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  9. 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, 2011 Edition Chapter 5

  10. Other Types of Input • A Web camis a type of digital video camera that enables a user to: Page 199 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  11. 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, 2011 Edition Chapter 5

  12. 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, 2011 Edition Chapter 5

  13. Other Types of Input • Optical mark recognition (OMR) reads hand-drawn marks such as small circles or rectangles Page 200 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  14. 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, 2011 Edition Chapter 5

  15. Other Types of Input • Magnetic stripe card readersread the magnetic stripe on the back of cards such as: Pages 201 Figure 5-22 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  16. 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, 2011 Edition Chapter 5

  17. Other Types of Input • Biometrics authenticates a person’s identity by verifying a personal characteristic Pages 202 - 203 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  18. What Is Output? • Output is data that has been processed into a useful form Pages 206 – 207 Figure 5-29 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  19. What Is Output? • An output deviceis any type of hardware component that conveys information to one or more people Page 206 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  20. 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 Fundamentals, 2011 Edition Chapter 5

  21. 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 Fundamentals, 2011 Edition Chapter 5

  22. 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 Fundamentals, 2011 Edition Chapter 5

  23. 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 Fundamentals, 2011 Edition Chapter 5

  24. 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 Fundamentals, 2011 Edition Chapter 5

  25. 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 Fundamentals, 2011 Edition Chapter 5

  26. Other Output Devices • An audio output deviceproduces music, speech, or other sounds Page 217 Figure 5-44 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  27. Other Output Devices • Headphones are speakers that cover 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 Fundamentals, 2011 Edition Chapter 5

  28. 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 Page 218 Figure 5-45 Discovering Computers Fundamentals, 2011 Edition Chapter 5

  29. Chapter 5 Complete

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