Technology / Computers / Interrupt: A signal informing a program that an event has occurred. When a program receives an interrupt signal, it takes a specified action (which can be to ignore the signal). Interrupt signals can cause a program to suspend itself temporarily to service the interrupt. Interrupt signals can come from a variety of sources. For example, every keystroke generates an interrupt signal. Interrupts can also be generated by other devices, such as a printer, to indicate that some event has occurred. These are called hardware interrupts. Interrupt signals initiated by programs are called software interrupts. A software interrupt is also called a trap or an exception. PCs support 256 types of software interrupts and 15 hardware interrupts. Each type of software interrupt is associated with an interrupt handler -- a routine key on your keyboard, this triggers a specific interrupt handler. The complete list of interrupts and associated interrupt handlers is stored in a table called the interrupt vector table, which resides in the first 1 K of addressable memory.
Interrupt Noun Synonyms: break in, cut in, intrude in, butt in, interfere in, punctuate, disturb, barge in, chime in, horn in
Technology / Computers / Uninterruptible Power Supply (UPS): A backup power unit that provides continuous power when the normal power supply is interrupted. UPS systems can be stand-by, only supplying power when the regular supply is interrupted, or fulltime, r MORE
Technology / Computers / Interrupt Request (IRQ): A dedicated channel between main components in a computer used to tell the CPU to stop working and receive more data. IRQs can be shared by multiple devices though that sometimes causes IRQ conflicts MORE