upgrading and repairing PCs technicians ... - 400 Bad Request
upgrading and repairing PCs technicians ... - 400 Bad Request upgrading and repairing PCs technicians ... - 400 Bad Request
230 Table 9.11 Keyboard POST Codes Continued Error Code Description 342 Keyboard cable error. 343 Keyboard LED card or cable failure. 365 Keyboard LED card or cable failure. 366 Keyboard interface cable failure. 367 Keyboard LED card or cable failure. Mice and Pointing Devices Mouse Motion Detection Methods The most common type of mouse mechanism is the optomechanical, used by Logitech and many other vendors. Dirt on the mouse ball or rollers, or fuzz in the light paths will cause skipping and erratic mouse cursor operation. Microsoft sells mice based on both mechanical (roller-type) technology and a new optical technology called IntelliEye. The IntelliMouse Optical and IntelliMouse with IntelliEye detect the mouse’s motion with a high-speed purely CMOS-based optical sensor that, unlike the old optical mouse designs from Mouse Systems, doesn’t require a special pad or special mousing surface. For those who prefer a different color to Microsoft’s IntelliEye Red, Logitech’s new MouseMan Wheel and Wheel Mouse feature a translucent blue bottom and similar optical detection features. Although some stores display these mice on a mirrored surface, don’t use a mirror or glass as a mousing surface. Your pants leg, airline tray table, or old school tie will work well, though. Pointing Device Interface Types The connector used to attach your mouse to the system depends on the type of interface you are using. Mice are most commonly connected to your computer through the following three interfaces: • Serial port • Dedicated motherboard mouse port (PS/2 port) • USB port Chapter 9—Keyboards, Mice, and Input Devices
Most mice that attach to the USB port can also be adapted to the PS/2 mouse port. Many serial mice are shipped with a PS/2 adapter, too. The serial port can be seen in Chapter 6, “Serial Ports and Modems.” The PS/2 mouse port is the same mechanical connector as the keyboard 6-pin mini-DIN shown earlier in this chapter, but you cannot interchange the mouse and keyboard. A fourth connector type, the 9-pin mini-DIN bus-mouse connector, is found on the back of a dedicated bus-mouse interface card or on some old ATI video cards. Bus mice are now considered obsolete, and most cannot be adapted to other types of ports. Note Microsoft sometimes calls a bus mouse an Inport mouse, which is its proprietary name for a bus mouse connection. Wireless Mouse Types The following are the two methods for interfacing wireless mice: • Radio Control • Infra-Red(IR) Mice and Pointing Devices 231 Radio-controlled mice are sold by Logitech, Microsoft, and other companies. The radio receiver plugs in to the standard mouse interface(s) listed previously, and the mouse is cordless, using a small battery to power its radio transmitter. Older versions of these mice were very bulky when compared to corded mice, but new wireless mice are about the same size as their corded cousins. IR mice are rare, and are most often combined with IR keyboards. The IR receiver plugs in to the standard mouse (and keyboard) connector, and requires a clear line-of-site between the mouse and the receiver. Software Drivers for the Mouse Depending on the operating system you’re using or the operating mode, you might need to manually load a driver, or it might be loaded automatically for you. Use Table 9.12 to determine what’s needed for your mouse.
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Most mice that attach to the USB port can also be adapted to the<br />
PS/2 mouse port. Many serial mice are shipped with a PS/2 adapter,<br />
too.<br />
The serial port can be seen in Chapter 6, “Serial Ports <strong>and</strong><br />
Modems.” The PS/2 mouse port is the same mechanical connector<br />
as the keyboard 6-pin mini-DIN shown earlier in this chapter, but<br />
you cannot interchange the mouse <strong>and</strong> keyboard.<br />
A fourth connector type, the 9-pin mini-DIN bus-mouse connector,<br />
is found on the back of a dedicated bus-mouse interface card or on<br />
some old ATI video cards. Bus mice are now considered obsolete,<br />
<strong>and</strong> most cannot be adapted to other types of ports.<br />
Note<br />
Microsoft sometimes calls a bus mouse an Inport mouse, which is<br />
its proprietary name for a bus mouse connection.<br />
Wireless Mouse Types<br />
The following are the two methods for interfacing wireless mice:<br />
• Radio Control<br />
• Infra-Red(IR)<br />
Mice <strong>and</strong> Pointing Devices 231<br />
Radio-controlled mice are sold by Logitech, Microsoft, <strong>and</strong> other<br />
companies. The radio receiver plugs in to the st<strong>and</strong>ard mouse interface(s)<br />
listed previously, <strong>and</strong> the mouse is cordless, using a small<br />
battery to power its radio transmitter. Older versions of these mice<br />
were very bulky when compared to corded mice, but new wireless<br />
mice are about the same size as their corded cousins.<br />
IR mice are rare, <strong>and</strong> are most often combined with IR keyboards.<br />
The IR receiver plugs in to the st<strong>and</strong>ard mouse (<strong>and</strong> keyboard) connector,<br />
<strong>and</strong> requires a clear line-of-site between the mouse <strong>and</strong> the<br />
receiver.<br />
Software Drivers for the Mouse<br />
Depending on the operating system you’re using or the operating<br />
mode, you might need to manually load a driver, or it might be<br />
loaded automatically for you. Use Table 9.12 to determine what’s<br />
needed for your mouse.
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