Devices are necessary to abide by a protocol so the interrupt-ask for (IRQ) lines is often shared. The PCI bus involves 4 interrupt lines, INTA# by means of INTD#, all of which can be found to each device. Nearly eight PCI units share the identical IRQ line (INTINA# as a https://nathanlabsadvisory.com/mas-cyber-hygiene-compliance-singapore/