1. Asynchronous Programming:

• Asynchronous programming allows you to write code that performs non-blocking operations, improving the responsiveness and scalability of your applications.
• C# provides the async and await keywords to work with asynchronous code.
• Asynchronous programming is commonly used for handling time-consuming operations, such as I/O operations, network requests, and database queries.

Example:

public async Task<string> DownloadDataAsync(string url)

{

    HttpClient client = new HttpClient();

    string data = await client.GetStringAsync(url);

    return data;

}