Tutorial by Topics: central

Grand Central Dispatch (GCD) is Apple's answer to multithreading. It is a lightweight framework for performing tasks synchronously or asynchronously in queues and handles CPU threads for you behind the scenes.

Related Topic: Concurrency

Grand Central Dispatch (GCD) In iOS, Apple provides two ways to do multitasking: The Grand Central Dispatch (GCD) and NSOperationQueue frameworks.We will discuss here about GCD. GCD is a lightweight way to represent units of work that are going to be executed concurrently You don’t schedule these units of work; the system takes care of scheduling for you. Adding dependency among blocks can be a headache. Canceling or suspending a block creates extra work for you as a developer!

CBCentralManager acts as a manager class central side app generally iOS app. which is responsible for bridging communication between peripherals and central.

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