How do interrupts function in a computer system?

How do interrupts function in a computer system?

• A. They improve memory allocation efficiency
• B. They delay program execution for performance reasons
• C. They signal the CPU to stop and handle events
• D. They optimize power consumption within servers

Answer: (C)

Interrupts function in a computer system primarily by signaling the CPU to stop its current execution and handle important events that require immediate attention. This mechanism allows the CPU to respond rapidly to various events, such as input from peripheral devices (like keyboards or mice), timers, or error conditions. When an interrupt occurs, the CPU temporarily halts its current activities, saves its state, and transitions to execute an interrupt service routine (ISR) designed to address the specific event that triggered the interrupt. Once the ISR completes its task, the saved state is restored, enabling the CPU to continue with previously executing processes. While the other answer choices touch on relevant aspects of computer operation, they don't accurately capture the primary function of interrupts. They do not emphasize the essential role of interrupts in managing event-driven processing, which is critical for creating responsive and efficient computing systems.

Interrupts function in a computer system primarily by signaling the CPU to stop its current execution and handle important events that require immediate attention. This mechanism allows the CPU to respond rapidly to various events, such as input from peripheral devices (like keyboards or mice), timers, or error conditions. When an interrupt occurs, the CPU temporarily halts its current activities, saves its state, and transitions to execute an interrupt service routine (ISR) designed to address the specific event that triggered the interrupt. Once the ISR completes its task, the saved state is restored, enabling the CPU to continue with previously executing processes.

While the other answer choices touch on relevant aspects of computer operation, they don't accurately capture the primary function of interrupts. They do not emphasize the essential role of interrupts in managing event-driven processing, which is critical for creating responsive and efficient computing systems.