- IBLOCK
- ICRHI
- ICRLO
- ID
- IDE_BSY
- IDE_CMD_RDMUL
- IDE_CMD_READ
- IDE_CMD_WRITE
- IDE_CMD_WRMUL
- IDE_DF
- IDE_DRDY
- IDE_ERR
- INIT
- INPUT_BUF
- INT_ACTIVELOW
- INT_DISABLED
- INT_LEVEL
- INT_LOGICAL
- IOAPIC
- IO_PIC1
- IO_PIC2
- IPB
- IRQ_COM1
- IRQ_ERROR
- IRQ_IDE
- IRQ_KBD
- IRQ_SPURIOUS
- IRQ_TIMER