Multiprocessing is a computing technique that allows a computer to perform multiple tasks simultaneously by using more than one processor or core. This approach enhances performance and efficiency, especially for applications that require heavy computation, as it divides tasks into smaller parts that can be processed at the same time. In a multiprocessing system, each processor can execute its own thread or process independently. This means that while one processor is handling a task, another can work on a different task, leading to faster execution and better resource utilization. This is particularly useful in environments where large data sets or complex calculations are involved.