Parallel computing is a type of computing in which multiple processors or computers work together simultaneously to solve a computational problem. This approach allows for faster processing speeds and greater computational power than a single processor or computer could achieve alone. Parallel computing is commonly used in various fields such as scientific research, data analysis, and artificial intelligence, where large amounts of data or complex calculations need to be processed quickly. It can be implemented using both hardware-based parallelism, such as multi-core processors, and software-based parallelism, such as distributed computing or parallel algorithms.