Final answer:
Threading is a technique used to allow multiple parts of the same process to run concurrently, improving the efficiency of a program on multi-core processors. It involves dividing a process into threads and requires careful consideration to avoid issues like deadlocks.
Step-by-step explanation:
Threading is a technique in which a process, executing an application, is divided into threads that can run concurrently. This method is used to improve the efficiency of a program by allowing multiple parts of the same application to be executed at the same time. The use of threading can significantly speed up a program's operation, especially on multi-core processors where each thread can potentially be executed on a separate processor core, allowing for true parallel processing.
Developing a multithreaded application requires careful consideration of potential issues such as resource sharing, synchronization, and data consistency. Not all tasks are suitable for concurrent execution, and improperly implemented threading can lead to problems such as deadlocks, where two or more threads are waiting indefinitely for each other to release resources. Therefore, employing threading effectively necessitates a thorough understanding of concurrent programming concepts.