nterrupts allow for of computation and I/O, which is key for improved utilization of CPU time

It seems like you're asking about the role of interrupts in computation and I/O, and how they contribute to improved utilization of CPU time. Here's a step-by-step explanation:

1. An interrupt is a signal sent to the processor that interrupts the current process. It may be generated by a hardware device or a software program.

2. A hardware interrupt is often created by devices such as a mouse or keyboard to get the processor's attention. A software interrupt is often created by a program requiring disk input or output.

3. When an interrupt is received, the processor interrupts its current task and switches to a special interrupt handler routine. This routine will save the state of the current task before it's interrupted, handle the interrupt, and then restore the state of the interrupted task so it can continue where it left off.

4. This mechanism allows the CPU to deal with high-priority tasks before returning to its regular tasks. For example, if a user presses a key on the keyboard (a high-priority task), the CPU can interrupt a lower-priority task (like a background computation) to handle this input.

5. By using interrupts, the CPU can manage its tasks more efficiently. It can respond to immediate needs and then return to other tasks, improving overall system performance and responsiveness. This is how interrupts contribute to improved utilization of CPU time.