Grand Central Dispatch (GCD) is a low-level C API for managing concurrent operations. It provides a way to execute tasks concurrently on multi-core processors by managing a pool of threads. GCD allows developers to define tasks as blocks of code and enqueue them on dispatch queues. The system then takes care of scheduling and executing these tasks efficiently, abstracting away the complexities of thread management, such as thread creation, scheduling, and context switching, allowing you to focus on the task you want to perform.
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