IOavbrott

IOavbrott is a Swedish term that translates to "IO interruption" or "input/output interruption" in English. In computing, it refers to a signal sent by a hardware device to the central processing unit (CPU) to indicate that the device requires attention or has completed a task. When the CPU receives an IOavbrott, it temporarily suspends its current operation, handles the interrupt request from the device, and then resumes its original task. This mechanism is crucial for efficient multitasking and allowing the CPU to manage multiple devices simultaneously without constant polling.

These interruptions allow devices such as keyboards, mice, network cards, and disk drives to communicate with the CPU in an asynchronous manner. Without IOavbrott, the CPU would have to continuously check each device to see if it needs something, which would be extremely inefficient and would significantly slow down the system. The handling of IOavbrott is managed by the operating system, which determines the priority of different interrupts and the appropriate response for each. Different types of IOavbrott exist, categorized by their source and urgency, ensuring that critical operations are handled promptly.