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#pci

2 posts

FreeDOSDeep Dive October 3, 2026 7 min read

Enumerating PCI Devices from Real-Mode DOS with the PCI BIOS

Use PCI BIOS installation checks and indexed device enumeration safely, interpret register results, and avoid treating firmware discovery as a driver.

#freedos#pci#bios

Tech HistoryDeep Dive October 3, 2026 7 min read

PCI Local Bus: A Common Expansion Architecture for the PC Era

How PCI standardized card configuration and data transfer, shifted expansion beyond processor-specific buses, and later gave way to PCI Express.

#technology-history#pci#computer-buses