Distributed Computing is a field of computer science that studies distributed systems, where multiple computers work together to solve a problem. These systems share resources and coordinate their actions by passing messages to achieve a common goal. Distributed computing enables tasks to be divided into smaller subtasks that can be processed simultaneously on different machines, leading to improved performance, fault tolerance, and scalability. Applications of distributed computing include cloud computing, grid computing, and peer-to-peer networks, all of which leverage the collective power of multiple computers to handle large-scale computational tasks efficiently.