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Realmode (x86 Boot) Drivers (cont)
Detection of Devices:
- Boot system automatically detects all self-identifying
devices:
- PCI devices
- EISA devices
- MCA (Micro Channel Architecture) devices
- Plug and Play ISA devices
- Non-Plug and Play ISA devices are referred to as "legacy
devices"
- Boot system cannot detect legacy devices
- Boot system relies on realmode drivers to detect legacy
devices
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