Megszakításkezelnek

Megszakításkezelnek, often translated as interrupt handling, is a fundamental concept in computer science, particularly in operating systems and embedded systems. It refers to the mechanism by which a computer's central processing unit (CPU) responds to a signal, known as an interrupt, generated by hardware or software. Interrupts are used to signal that an event requiring immediate attention has occurred.

When an interrupt occurs, the CPU suspends its current task and jumps to a special piece of code called an interrupt service routine (ISR) or interrupt handler. This routine is responsible for addressing the cause of the interrupt. Once the ISR has completed its task, the CPU can resume the interrupted program from where it left off. This process allows the CPU to efficiently manage multiple tasks and respond to external events without constantly polling for their occurrence.

Common sources of interrupts include keyboard presses, mouse movements, timer expirations, disk I/O completion, and network activity. In embedded systems, interrupts are crucial for real-time responsiveness, enabling devices to react instantly to sensor readings or user input. Without effective interrupt handling, systems would be sluggish and unable to perform time-critical operations. The design and implementation of interrupt handlers are vital for system stability and performance.