When dealing with computer systems, handling interruptions is crucial for efficient operation. , a method where the processor keeps checking a device's status to see if it needs attention, is one way to respond to interruptions. However, this can lead to high CPU usage and slow response times, known as polling latency.
offer a more efficient solution by allowing devices to send signals to the CPU when they need attention. When an interrupt occurs, the points the CPU to the correct Interrupt Service Routine (ISR) to handle the request. This process avoids the need for a continuous and reduces .
lines are used to signal the CPU about incoming interrupts. This allows for more efficient handling of interruptions and eliminates the need for continuous polling, reducing interrupt latency.
further optimize the handling of multiple interrupts by providing a unique vector for each device, making it easier for the CPU to identify the source of the interrupt.
In a system without proper synchronization, s can occur when multiple s access shared resources simultaneously, leading to unexpected behavior and potentially resulting in situations. management is essential to avoid these issues and allow multiple threads to execute simultaneously in a safe and efficient manner.
