The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

IRQ interrupt request

The means that a connection device uses to signal other hardware components that it needs attention. When you install new devices (such as serial ports, modems, and mouse devices), you may find that previous devices no longer work because the new devices are using the previously used IRQs. Also called hardware interrupts.