What is what does concurrent mean?

Concurrent means happening at the same time or simultaneously. In computing, concurrent refers to tasks, processes, or programs that are executed simultaneously by a computer system, often by utilizing multiple processing cores or threads. The purpose of concurrency is to improve system performance, efficiency, and responsiveness. It is used in various applications, such as web servers, multimedia processing, database management, and operating systems. However, concurrency can also introduce challenges, such as the need for synchronization and coordination to prevent conflicts or race conditions.