Jump To:
Leopard Technical Notes: Hardware & Drivers
Open Firmware is the nonproprietary name of firmware that complies with IEEE Std 1275-1994. It is the ROM-based software that tests and initializes the hardware, determines the hardware configuration, loads or boots the operating system, and provides interactive debugging facilities in case of faulty hardware or software.

Document Descriptions
On Off

Sort by
Sorted by
Fundamentals of Open Firmware, Part III: Understanding PCI Expansion ROM Choices for Mac OS (HTML)
TN1044: Recommended contents for PCI expansion ROMs, including a table of standard devices, properties and methods.
Running files from a hard drive in Open Firmware (HTML)
TN2001: Demonstrates editing, saving, and retrieving Open Firmware commands to a file on a Macintosh hard drive.