This is the type of "pure" async operation that can be represented with the async/ await pattern. The process of moving the head around is asynchronous, it's not an operation that runs on CPU, it's just a physical task you have to wait for completing.
#Aasync drive full add second drive driver
To read individual bytes of a file, operating system issues requests to the driver software, which in turn tells the drive to seek to a specific position by moving its mechanical head. You can think of an asynchronous operation as just an aggregation of two events - start and finish.Ī good example of an asynchronous operation is reading a file from a hard drive.
Q: What's the difference between asynchronous programming and multithreaded programming?Īn asynchronous task does not necessarily represent execution on a separate thread. Methods that contain await must be marked with the async keyword.
We use await keyword to materialize the task into resulting value. These types represent an abstraction around an operation that may execute asynchronously. This feature is facilitated by the Task/ Task classes or ValueTask/ ValueTask structs. These keywords allow writing asynchronous non-blocking code in a synchronous fashion. Q: What is the purpose of async/ await keywords?
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