Chapter 11: Input Devices

	A+ Certification For Dummies
	A+ CERTIFICATION FOR DUMMIES: CHAPTER 1 A+ CERTIFICATION FOR DUMMIES: CHAPTER 2 A+ CERTIFICATION FOR DUMMIES: CHAPTER 3 A+ CERTIFICATION FOR DUMMIES: CHAPTER 4 A+ CERTIFICATION FOR DUMMIES: CHAPTER 5
		A+ Certification For Dummies A+ Certification for Dummies Ron Gilster Best Price $12.86 or Buy New $22.04
	Chapter 11: Input Devices Chapter 11: Input Devices Exam Objectives Identifying common input devices Defining input device terms, concepts, and functions Cleaning and caring for input devices Troubleshooting common symptoms and problems Input devices are included on the A+ Core Hardware exam primarily under installing, configuring, and upgrading field-replaceable modules (FRMs). You may also run into preventive maintenance and troubleshooting questions about input devices. Don’t expect to find many questions like “How many keys are on the keyboard?” or “How does a mouse work?” The keyboard and mouse, the major input devices, are essentially throwaway technology. It’s a lot cheaper, in terms of both labor and parts, to simply replace a problem keyboard or mouse with a new module than to waste the time needed to repair one. I can’t quote statistics as proof (and I looked for them), but I bet that after power problems (“It worked fine this morning before the power failure”) and printer problems (“What does online mean?”), the most common service problem involves a keyboard (“I spilled my Mountain Dew on it and for some reason it stopped working”) or mouse (“The foot pedal doesn’t seem to work anymore”). If I’m right, and I can’t be too wrong on this, then as a certified PC repair technician, you should understand how input devices work, connect, and fail. You especially need to know how to plug in the replacement unit. Quick Assessment Identifying common input devices The most commonly used PC keyboard format is the ______ keyboard. The mouse type that uses captured digital images to detect movement is a(n) ______ mouse. A(n) ______ mouse uses a ball and sensor mechanism to detect movement. Defining input device terms, concepts, and functions A(n) ______ mouse connects to a mini-DIN-6 connector. The bus mouse attaches to its own ______. Cleaning and caring for input devices To remove paper bits and food crumbs from a keyboard, you turn it upside down and ______ it. ______ and ______ are best for cleaning the ball of a mouse. Troubleshooting common symptoms and problems A 300-range error code displayed during the boot sequence indicates a(n) ______ error. Answers Enhanced. Check out “Keyboards.” Optical. Click on “Sighting the optical mouse.” Mechanical. See “Rolling along with mechanical mice.” PS/2. Peruse “Connecting the mouse.” Adapter or expansion card. Review “Connecting the mouse.” Shake. Review “Cleaning the keyboard” for the common keyboard preventive maintenance actions. A swab, mild soap. Take a look at “Taking good care of your mouse.” Keyboard. See “Solving boot sequence problems” for information on common keyboard errors during POST. Subscribe to A+ Certification For Dummies