What You've
Learned
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Buses, such as USB and FireWire, are used to
connect devices to the computer.
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Devices are categorized into classes based on
their functionality.
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Drivers are pieces of code that allow the system
or a user to interact with a device. Drivers can be kernel
extensions that provide functionality at a very low level in Mac OS
X (such as plug-ins), higher-level system components (such as
printing and Image Capture frameworks), or applications that are
used to control specific devices.
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System Profiler provides information about
connected devices and available drivers. The Hardware section of
the Contents list in System Profiler lists the buses built into
your computer. For each bus, System Profiler lists the connected
devices. The Extensions item in the Software section of the
Contents list lists all of the kernel extensions installed on your
system.
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Universal Access preferences provides options to
allow easier access for users with difficulties using I/O devices
such as keyboards, mice, and monitors.
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To troubleshoot issues with peripherals, use
System Profiler to determine whether a device is connected, plug
the device into a different port, unplug other devices, or update
drivers.
References
The following Knowledge Base documents (located
at www.apple.com/support) will
provide you with further information regarding peripherals in Mac
OS X.
External Devices
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25403, "Mac OS X 10.4: About compatible devices
and peripherals"
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25527, "Mac OS X: Files With Leading Period
Appear on a Windows-Compatible PC"
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58648, "Mac OS X: Do Not Connect USB Printer to
Apple Pro Keyboard"
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106403, "Mac OS X: 'No Driver for this platform'
Message"
USB
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31116, "USB Cable: Maximum Cable Length"
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43005, "USB: Hub Description"
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61237, "What to do if a USB device isn't
working"
FireWire
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30520, "About FireWire 400 Technology"
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58583, "How to use FireWire target disk
mode"
URLs
Visit the following websites for more
information.
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