PC Hardware A Beginner’s Guide

(^460) PC Hardware: A Beginner’s Guide The keyboard interface translates the scan code into its ASCII equivalent, which is then ...

Chapter 18: Keyboards, Mice, and Pointing Devices^461 Contact Keyswitches Contact keyswitches require two parts of the switch to ...

(^462) PC Hardware: A Beginner’s Guide circuit. Keyboards with this type of switches tend to have a soft feel and have had some ...

Keyboardcablescanbereplaced.Atthekeyboardend,itisattachedtoafour-wireflat connector that is used to connect the cable to the key ...

(^464) PC Hardware: A Beginner’s Guide  Radio frequency (RF) connection The most common form of cordless devices uses digital r ...

Chapter 18: Keyboards, Mice, and Pointing Devices^465  Optomechanical mouse This type of mouse uses light-emitting diodes (LEDs ...

(^466) PC Hardware: A Beginner’s Guide  Optical encoding disk As the ball rolls, the rollers turn the shafts that spin the opti ...

Chapter 18: Keyboards, Mice, and Pointing Devices^467 A mouse with a ball that is 21 millimeters (mm) in diameter has rollers th ...

(^468) PC Hardware: A Beginner’s Guide The PS/2 connector on the mouse uses four pins to connect and communicate to the PC. The ...

Chapter 18: Keyboards, Mice, and Pointing Devices^469 The first byte of the mouse’s data packet contains: Two bits that indicat ...

(^470) PC Hardware: A Beginner’s Guide Optical Mouse The optical mouse eliminates the mouse ball, replacing it with a optical se ...

Chapter 18: Keyboards, Mice, and Pointing Devices^471 Other Pointing Devices Many types of pointing devices exist, but the four ...

(^472) PC Hardware: A Beginner’s Guide Trackballs A trackball is essentially an upside-down mouse. As shown in Figure 18-26, a t ...

Chapter 18: Keyboards, Mice, and Pointing Devices^473 Joysticks A joystick is a type of pointing device that is used primarily w ...

(^474) PC Hardware: A Beginner’s Guide Figure 18-28. A fully featured joystick can make playing a game more fun. Photo courtesy ...

CHAPTER 19 Ports and Connectors 475 Copyright 2001 The McGraw-Hill Companies, Inc. Click Here for Terms of Use. ...

I t is virtually impossible to design a personal computer with all of the peripheral de- vices attached to suit the needs of eve ...

Chapter 19: Ports and Connectors^477 Figure 19-1. Connector groups on the motherboard ...

(^478) PC Hardware: A Beginner’s Guide Figure 19-2. Connector groups on the motherboard ...

The midboard connectors are divided into the following functional groups:
Audio/video This group of connectors is included on ...