The bus allows any I/O control board having a common interface, such as ISA, {TAIL ~ PCI}, {HEAD ~ Compact PCI}, etc., to connect to the bus by attachment to one of its slots 
The bus allows any I / O control board having a common interface , such as ISA , { TAIL ~ PCI } , { HEAD ~ Compact PCI } , etc . , to connect to the bus by attachment to one of its slots
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH