The concepts of asynchronous and synchronous programming

[Symasoiti97]

What do you say about my thoughts? @stephentoub

Asynchrony or synchrony describe the relationship between two or more actions.

When we discuss synchrony or asynchrony in programming, we need to define these actions:

1. Waiting for the result of a task.
2. The task is an operation we are waiting for (e.g., making a request, reading a file).

How it works in practice:

• Synchronous:
  • Waiting: Blocks the thread until the operation is complete.
  • Task: Executes sequentially until it finishes.
• Asynchronous:
  • Waiting: Does not block the thread, allowing other tasks to run.
  • Task: Starts and runs independently, with the result being processed later.

Conclusion:

Synchronicity is when the waiting and the task being awaited occur at the same time, meaning synchronously.
Asynchronicity is when the waiting and the task being awaited occur NOT at the same time, meaning asynchronously.

Asynchronous programming allows a thread that is waiting for a task to complete to be freed up to perform other useful work.

[beryozavv]

Maybe you wanted to ask why exactly the terms "synchronous" and "asynchronous" were chosen?

[Symasoiti97]

I wanted to answer on this question and I wanted to ask if I'm right

Synchronicity is when the waiting and the task being awaited occur at the same time, meaning synchronously.
Asynchronicity is when the waiting and the task being awaited occur NOT at the same time, meaning asynchronously.

[En3Tho]

Synchronous - you call a person, ask a diffciult question and wait for an answer while holding a phone and occupying your hands.

Asynchronous - you call a person, ask a difficult question and tell to call you back when there is an answer. Meanwhile you do other things and resume the conversation when that other person is ready

[Symasoiti97]

You provided an example, but I would like to see the definition of these terms.
For me, synchronous (or asynchronous) is the relationship between actions.

What are these actions in your example?