PORTIBM PC Portable (uses same BIOS as XT) 0300-0303 - Panasonic 52x CD-ROM SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer. A host adapter connects the SCSI bus to the computer's own bus. See also ESDI, IDE. Miniport Range: PORTIBM PC Portable (uses same BIOS as XT) 0300h-0303h,PORTIBM PC Portable (uses same BIOS as XT) 0320h-0323h,PORTIBM PC Portable (uses same BIOS as XT) 0340h-0343h,PORTIBM PC Portable (uses same BIOS as XT) 0360h-0363h, and PORTIBM PC Portable (uses same BIOS as XT) 0380h-0383h