What happens to task threads when using the default OperationQueue?

When using the standard OperationQueue, a queue is created with a limit on the number of concurrently executing operations (usually equal to the number of CPU cores). Task threads are managed automatically by the system:

• Operations are executed in parallel, but with control over the maximum number of active ones.
• If there are more operations than available threads, they are queued and wait for their turn.
• The queue uses a thread pool to efficiently redistribute resources.

Thus, OperationQueue simplifies multithreading management by allowing tasks to run asynchronously without explicit thread creation and management.