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ANSI SCSI Standards
(HTML)
Deprecated - DV03: Describes past Macintosh systems that did not fully support the ANSI SCSI-1 standard.
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Accessibility |
Technical Q&As |
1995-07-01
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AirPort Developer Note
(HTML)
Describes Apple's implementation of 802.11 wireless LAN standards on Mac computers.
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AirPort/802.11 |
Guides |
2008-04-28
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Are interrupts enabled while Open Firmware is running?
(HTML)
( )
HW44: Explains that interrupts are disabled when Open Firmware is running.
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AirPort/802.11 |
Technical Q&As |
1999-02-15
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Determining Open Firmware configuration variables
(HTML)
()
HW56: Discusses how to determine the Open Firmware variables on a system.
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AirPort/802.11 |
Technical Q&As |
1999-03-29
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Expansion ROM device properties
(HTML)
()
HW50: Describes the Open Firmware properties that should be included in a boot device's expansion ROM.
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AirPort/802.11 |
Technical Q&As |
1999-03-29
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ExpressCard Prevents System Sleep
(HTML)
QA1517: Describes how some ExpressCard cards can prevent system sleep and how to fix the problem.
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AirPort/802.11 |
Technical Q&As |
2007-02-28
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Generating an NMI Without a Programmer's Switch
(HTML)
()
QA1264: Explains how to generate a non-maskable interrupt (NMI) on CPUs without programmer's switches.
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AirPort/802.11 |
Technical Q&As |
2004-04-26
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Getting a Packet Trace
(HTML)
()
QA1176: Lists tools available for looking at the network packets on the wire.
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AirPort/802.11 |
Technical Q&As |
2008-06-03
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Installing an I/O Kit KEXT Without Rebooting
(HTML)
QA1319: Describes the state of the art of installing I/O Kit kernel extensions (KEXTs) without requiring a restart.
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AirPort/802.11 |
Technical Q&As |
2003-10-28
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IODeviceTree & the IORegistry
(HTML)
()
QA1120: Describes the IODeviceTree plane in the Mac OS X IORegistry.
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AirPort/802.11 |
Technical Q&As |
2002-02-13
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IOKit Framework Headers
(HTML)
()
QA1107: Describes the differences between the headers in IOKit.framework and the I/O Kit headers in Kernel.framework.
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AirPort/802.11 |
Technical Q&As |
2002-01-15
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Is the Open Firmware device tree object oriented?
(HTML)
HW80: Discusses the object-oriented attributes of the Open Firmware device tree.
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AirPort/802.11 |
Technical Q&As |
1999-11-15
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Mapping kernel memory to user space on Mac OS X 10.2
(HTML)
()
QA1197: Describes a change to mapping kernel memory to user space affecting Mac OS X 10.2 and later.
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AirPort/802.11 |
Technical Q&As |
2002-09-13
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The "packages" node in the device tree
(HTML)
HW90: Describes the "packages" node in the Open Firmware device tree.
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AirPort/802.11 |
Technical Q&As |
2006-02-22
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PCI Type 1 Cycles
(HTML)
HW26: Describes the circumstances when the PowerMac generates a Configuration Type 1 command.
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AirPort/802.11 |
Technical Q&As |
1995-07-15
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Power Management; Policy Maker vs. Power Controller
(HTML)
()
QA1121: Describes the differences between a Power Management Policy Maker and a Power Management Power Controller.
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AirPort/802.11 |
Technical Q&As |
2002-02-13
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Sample code for allocating an amount of dictionary space
(HTML)
HW71: Discusses the allocation and the setting of memory for Dictionary space in Open Firmware.
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AirPort/802.11 |
Technical Q&As |
1999-10-11
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Understanding and Debugging Kernel Panics
(HTML)
()
TN2063: Addresses kernel panics: what they are and how to debug the code that caused the panic.
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AirPort/802.11 |
Technical Notes |
2008-08-14
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What are configuration variables in Open Firmware?
(HTML)
()
HW38: Defines the configuration variables in Open Firmware.
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AirPort/802.11 |
Technical Q&As |
1999-02-15
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What is the "dump" word and how do I use it?
(HTML)
HW68: Describes the function of the Open Firmware word "dump" and how it can be used.
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AirPort/802.11 |
Technical Q&As |
1999-10-11
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What numeric base is the default for the Open Firmware user interface?
(HTML)
HW65: Describes how the default numeric base used by the Open Firmware user interface is hexadecimal.
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AirPort/802.11 |
Technical Q&As |
1999-10-11
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Why did the name of the PCI bridge change?
(HTML)
()
HW59: Explains the name change of the PCI bridge to the generic name "pci" in Open Firmware.
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AirPort/802.11 |
Technical Q&As |
1999-03-29
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12-inch PowerBook G4 Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the 12-inch PowerBook G4 introduced in January 2005.
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Apple Hardware |
Guides |
2005-02-04
|
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128Mb SDRAM ICs limitation on original "Bronze Keyboard" Powerbook G3
(HTML)
QA1040: Outlines Memory ICs design limitation on original "Bronze Keyboard" Powerbook G3.
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Apple Hardware |
Technical Q&As |
2001-06-21
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15-Inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in February 2008.
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Apple Hardware |
Guides |
2008-03-04
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15-Inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in November 2007.
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Apple Hardware |
Guides |
2007-12-14
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15-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in June 2007.
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Apple Hardware |
Guides |
2007-06-11
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15-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in October 2006.
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Apple Hardware |
Guides |
2007-05-03
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15-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch MacBook Pro computer introduced in October 2006.
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Apple Hardware |
Guides |
2007-05-03
|
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15-inch PowerBook G4 Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the 15-inch PowerBook G4 introduced in October 2005.
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Apple Hardware |
Guides |
2005-10-27
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17-inch iMac for Education Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch iMac for Education computer introduced in July 2006.
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Apple Hardware |
Guides |
2006-11-07
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17-Inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in February 2008.
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Apple Hardware |
Guides |
2008-03-04
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17-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in November 2007.
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Apple Hardware |
Guides |
2007-12-14
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17-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in June 2007.
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Apple Hardware |
Guides |
2007-06-11
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17-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in October 2006.
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Apple Hardware |
Guides |
2007-04-04
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17-inch MacBook Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch MacBook Pro computer introduced in April 2006.
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Apple Hardware |
Guides |
2007-04-03
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17-inch PowerBook G4 Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the 17-inch PowerBook G4 introduced in October 2005.
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Apple Hardware |
Guides |
2005-10-19
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The AAPL, slot-name property and PCI
(HTML)
()
HW61: Discusses the use of the AAPL,slot name property for PCI
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Apple Hardware |
Technical Q&As |
1999-04-19
|
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All Hardware Products
(HTML)
A list of links to all Apple hardware developer notes.
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Apple Hardware |
Guides |
|
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ANSI SCSI Standards
(HTML)
Deprecated - DV03: Describes past Macintosh systems that did not fully support the ANSI SCSI-1 standard.
|
Apple Hardware |
Technical Q&As |
1995-07-01
|
|
Apple Xserve Diagnostics User's Guide
(PDF)
New document that explains how to use Apple Xserve Diagnostics tool to test server hardware.
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Apple Hardware |
Guides |
2007-12-04
|
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Are interrupts enabled while Open Firmware is running?
(HTML)
()
HW44: Explains that interrupts are disabled when Open Firmware is running.
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Apple Hardware |
Technical Q&As |
1999-02-15
|
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Are the Name Registry device tree nodes unique?
(HTML)
Deprecated - HW64: Discusses whether Name Registry nodes copied from the Open Firmware device tree are unique.
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Apple Hardware |
Technical Q&As |
1999-10-11
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Bluetooth Radio Power Class for Apple Systems
(HTML)
()
QA1278: Notes Preferred Bluetooth Transmitter Characteristics for products designed for Apple Systems.
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Apple Hardware |
Technical Q&As |
2003-08-06
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Booting after invoking the Open Firmware user interface
(HTML)
()
HW48: Tells how to boot a system after entering the Open Firmware user interface.
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Apple Hardware |
Technical Q&As |
1999-02-15
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The "chosen" node in the device tree
(HTML)
HW88: Describes how to find the "chosen" node in the Open firmware device tree.
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Apple Hardware |
Technical Q&As |
2000-09-05
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CPUGestalt
(HTML)
(DMG)
(ZIP)
Deprecated - Shows how to determine the processor type of the Macintosh you're running on.
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Apple Hardware |
Sample Code |
2003-10-27
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DDR SDRAM ICs for PowerBooks and iBooks that use Memory bus slewing
(HTML)
QA1344: Specifies DDR SDRAM IC optimization for PowerBooks and iBooks that use Memory bus slewing.
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Apple Hardware |
Technical Q&As |
2004-03-18
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Detecting a CD-ROM
(HTML)
()
DV18: Demonstrates CD-ROM drive detection.
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Apple Hardware |
Technical Q&As |
1997-01-31
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Detecting specific ROM-in-RAM Mac
(HTML)
()
Deprecated - HW49: Identifying a Mac by name ("iMac"), and better alternatives for determining specific features ("has Firewire").
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Apple Hardware |
Technical Q&As |
1999-10-05
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Determining Open Firmware configuration variables
(HTML)
()
HW56: Discusses how to determine the Open Firmware variables on a system.
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Apple Hardware |
Technical Q&As |
1999-03-29
|
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Determining RAM size & location in New World Machines
(HTML)
QA1065: Demonstrates Open Firmware method of determining RAM size & location in New World Machines.
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Apple Hardware |
Technical Q&As |
2001-08-01
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Determining the version of Open Firmware on your Mac
(HTML)
()
HW60: Describes a method to display the version of Open Firmware on a Macintosh.
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Apple Hardware |
Technical Q&As |
1999-03-29
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Difference between using Restart or Shut Down in the Finder's Special menu in Open Firmware
(HTML)
()
HW47: Explains the differences between using Restart or Shut Down on Open Firmware
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Apple Hardware |
Technical Q&As |
1999-02-15
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Disabling a Processor on a Multiprocessor System
(HTML)
()
QA1141: Describes how to disable a processor on a multiprocessor system for testing purposes.
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Apple Hardware |
Technical Q&As |
2002-05-22
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Displaying PCI Configuration Registers contents in Open Firmware
(HTML)
QA1036: Demonstrates how to display PCI Configuration Resister contents in Open Firmware.
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Apple Hardware |
Technical Q&As |
2001-05-18
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dl command in 1 machine mode
(HTML)
()
HW51: Describes using the "dl" command in 1 machine mode.
|
Apple Hardware |
Technical Q&As |
1999-03-29
|
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Do PowerBooks have a PCI bus?
(HTML)
()
HW43: Explains that a Powerbook has a PCI bus.
|
Apple Hardware |
Technical Q&As |
1999-02-15
|
|
DR Emulator Caches
(HTML)
()
Deprecated - HW28: Describes the Dynamic Recompiling emulator's cache, including a description of when to flush the cache.
|
Apple Hardware |
Technical Q&As |
1996-04-08
|
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DRAM DIMM power pin connections for Macintosh Computers
(HTML)
()
QA1271: Discusses design considerations for DRAM DIMM power pin connections for Macintosh Computers.
|
Apple Hardware |
Technical Q&As |
2003-07-04
|
|
eMac Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the eMac computer introduced in May 2005.
|
Apple Hardware |
Guides |
2005-05-03
|
|
Empty Memory Objects
(HTML)
()
QA1259: Describes how two memory management edge cases are handled by the common Mac OS memory allocators.
|
Apple Hardware |
Technical Q&As |
2003-04-21
|
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Energy Star PCI Device
(HTML)
()
QA1108: Provides useful information for developers of Energy Star-compliant PCI devices.
|
Apple Hardware |
Technical Q&As |
2002-01-15
|
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Expansion ROM device properties
(HTML)
()
HW50: Describes the Open Firmware properties that should be included in a boot device's expansion ROM.
|
Apple Hardware |
Technical Q&As |
1999-03-29
|
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Explanation of SDRAM configuration Nomenclature
(HTML)
HW75: Explains the three-part "Device configuration" numbers for SDRAM in the Power Mac G4 Computer Developer Note.
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Apple Hardware |
Technical Q&As |
1999-10-18
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Faster DDR DRAM in the 867MHz Power Mac G4 (Mirrored Drive Doors)
(HTML)
()
QA1191: Confirms the use of faster DDR DRAM in the 867MHz Power Mac G4 (Mirrored Drive Doors).
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Apple Hardware |
Technical Q&As |
2002-08-19
|
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Fundamentals of Open Firmware, Part II: The Device Tree
(HTML)
TN1062: Describes the Open Firmware device tree.
|
Apple Hardware |
Technical Notes |
1996-09-01
|
|
Generating an NMI Without a Programmer's Switch
(HTML)
()
QA1264: Explains how to generate a non-maskable interrupt (NMI) on CPUs without programmer's switches.
|
Apple Hardware |
Technical Q&As |
2004-04-26
|
|
The "green" PCI bus
(HTML)
HW93: Explains why the PCI bus is considered "green".
|
Apple Hardware |
Technical Q&As |
2000-09-05
|
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High-Speed SDRAM Design Considerations
(HTML)
()
TN1138: Illustrates certain issues with the design of high-speed SDRAM DIMM modules.
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Apple Hardware |
Technical Notes |
1998-08-01
|
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How do I change the numeric base for the Open Firmware user interface?
(HTML)
HW66: Explains how to change the numeric base for the Open Firmware user interface.
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Apple Hardware |
Technical Q&As |
1999-10-11
|
|
How do I determine the top of the Open Firmware dictionary?
(HTML)
HW69: Explains how to determine the top of the Open Firmware dictionary.
|
Apple Hardware |
Technical Q&As |
1999-10-11
|
|
How does Open Firmware generate the name property?
(HTML)
()
HW39: Describes the Open Firmware name property generation process.
|
Apple Hardware |
Technical Q&As |
1999-02-15
|
|
I/O Kit Power Controller
(HTML)
()
TN2076: Describes code to include in a KEXT in order to register for power management events.
|
Apple Hardware |
Technical Notes |
2003-06-20
|
|
iBook Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the iBook G4 computer introduced in July 2005.
|
Apple Hardware |
Guides |
2005-07-26
|
|
iMac Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of iMac computers introduced in April 2008.
|
Apple Hardware |
Guides |
2008-04-28
|
|
iMac Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of iMac computers introduced in August 2007.
|
Apple Hardware |
Guides |
2007-08-07
|
|
iMac Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of iMac computers with SuperDrive introduced September 2006.
|
Apple Hardware |
Guides |
2007-05-03
|
|
iMac Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the iMac computer introduced in January 2006.
|
Apple Hardware |
Guides |
2007-04-04
|
|
iMac Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of iMac computers with Combo drive introduced September 2006.
|
Apple Hardware |
Guides |
2006-09-07
|
|
iMac G5 Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the iMac G5 computer introduced in October 2005.
|
Apple Hardware |
Guides |
2006-04-07
|
|
iMac G5 Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the iMac G5 introduced in May 2005.
|
Apple Hardware |
Guides |
2005-05-03
|
|
Installing an I/O Kit KEXT Without Rebooting
(HTML)
QA1319: Describes the state of the art of installing I/O Kit kernel extensions (KEXTs) without requiring a restart.
|
Apple Hardware |
Technical Q&As |
2003-10-28
|
|
Invoking the Open Firmware user interface
(HTML)
()
HW45: Describes how to invoke the Open Firmware user interface on startup.
|
Apple Hardware |
Technical Q&As |
1999-02-15
|
|
IODeviceTree & the IORegistry
(HTML)
()
QA1120: Describes the IODeviceTree plane in the Mac OS X IORegistry.
|
Apple Hardware |
Technical Q&As |
2002-02-13
|
|
IOKit Framework Headers
(HTML)
()
QA1107: Describes the differences between the headers in IOKit.framework and the I/O Kit headers in Kernel.framework.
|
Apple Hardware |
Technical Q&As |
2002-01-15
|
|
Is the Open Firmware device tree object oriented?
(HTML)
HW80: Discusses the object-oriented attributes of the Open Firmware device tree.
|
Apple Hardware |
Technical Q&As |
1999-11-15
|
|
Mac mini Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the Mac mini computer introduced in February 2006.
|
Apple Hardware |
Guides |
2007-04-04
|
|
Mac mini Developer Note
(HTML)
(PDF)
Specifies the internal design, I/O features, and expansion capabilities of the Mac mini introduced January 2005.
|
Apple Hardware |
Guides |
2005-04-05
|
|
Mac Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the Mac Pro computers introduced in January 2008.
|
Apple Hardware |
Guides |
2008-01-09
|
|
Mac Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the Mac Pro computer introduced in August 2006.
|
Apple Hardware |
Guides |
2007-05-03
|
|
Mac Pro Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the Mac Pro computers introduced in April 2007.
|
Apple Hardware |
Guides |
2007-04-05
|
|
MacBook Air Developer Note
(HTML)
New document specifies internal design, I/O features, and expansion capabilities of the MacBook Air computer introduced in January 2008.
|
Apple Hardware |
Guides |
2008-01-18
|
|
MacBook Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the MacBook computer introduced in November 2007.
|
Apple Hardware |
Guides |
2007-11-10
|
|
MacBook Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the MacBook computer introduced in May 2007.
|
Apple Hardware |
Guides |
2007-05-17
|
|
MacBook Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the MacBook computer introduced in May 2006.
|
Apple Hardware |
Guides |
2007-04-04
|
|
MacBook Developer Note
(HTML)
Specifies the internal design, I/O features, and expansion capabilities of the MacBook computer introduced in November 2006.
|
Apple Hardware |
Guides |
2007-04-04
|
|
Maximum Memory for the "Firewire" PowerBook
(HTML)
Deprecated - HW83: Discrepancies between PowerBook Developer Note and TIL articles 14870 and 58582, regarding maximum memory configurations.
|
Apple Hardware |
Technical Q&As |
2000-03-13
|
|
Menu Bar Clock and NVRAM
(HTML)
QA1102: Explains why booting with the Command-Option-P-R keys doesn't reset date and time preferences.
|
Apple Hardware |
Technical Q&As |
2001-12-21
|
|
Open Firmware and the devalias node
(HTML)
HW95: Open Firmware and the devalias node
|
Apple Hardware |
Technical Q&As |
2000-09-05
|
