Channels of communication on which information is transferred
within a computer or between a computer and peripherals. There are
far too many to list but some of them are: address, data, control,
input/output, PCI, PCIe, ATA, SATA, USB, UNIBUS, S-100, MULTIBUS,
FireWire, NUBUS, SCSI, Fibre Channel, EtherNet, GPIB, RS-232,
MIL-STD-1553B