Nội dung

Chapter 5 Input Chapter 5 Objectives Define input Explain how a digital camera works List the characteristics of a keyboard Describe uses of PC video cameras, Web cams, and video conferencing Describe different mouse types and how they work Discuss various scanners and reading devices and how they work Summarize how various pointing devices work Explain the types of terminals Explain how voice recognition works Summarize the various biometric devices Describe various input devices for PDAs, smart phones, and Tablet PCs Identify alternative input devices for physically challenged users Next What Is Input? What is input?  Data or instructions entered into memory of computer  Input device is any hardware component that allows users to enter data and instructions p. 234 and 236 Fig. 5-1 Next What Is Input? What are the two types of input?  Data   Instructions    p. 234 Unprocessed text, numbers, images, audio, and video Programs Commands User responses Next The Keyboard How is the keyboard divided?    Typing area Numeric keypad Function keys, special keys that issue commands p. 236 Fig. 5-2 Next The Keyboard What are alternative forms for commands?  Many programs allow you to use key combination, menu, or button to obtain same result MICROSOFT WORD KEY COMBINATION EQUIVALENTS Key Combination Menu | Command Copy Shift+F2 or Ctrl+C Edit | Copy Open Ctrl+F12 File | Open Paste Ctrl+V Edit | Paste Command p. 236 Button Next The Keyboard What is the insertion point?   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 p. 237 Fig. 5-3 Next The Keyboard What is a cordless keyboard?  Communicate with a receiver attached to a port on the system unit p. 238 Fig. 5-4 Next The Keyboard What are other types of keyboards?  p. 238 Notebook and many handheld computers have built-in keyboards Next Pointing Devices What is a mouse?  Pointing device that fits under palm of hand   Pointing device controls movement of pointer, also called mouse pointer mouse buttons wheel button 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 p. 239 Fig. 5-5 ball mouse pad Next