Pour expliquer la différence, voici une histoire de burgers :

#### Burgers concurrents

Vous amenez votre crush 😍 dans votre fast food 🍔 favori, et faites la queue pendant que le serveur 💁 prend les commandes des personnes devant vous.

<img src="/img/async/concurrent-burgers/concurrent-burgers-01.png" class="illustration">

  file.writeTo(File(args[0]))
}

fun loadIdnaMappingTableData(): IdnaMappingTableData {
  val path = "/okhttp3/internal/idna/IdnaMappingTable.txt".toPath()
  val table =
    FileSystem.RESOURCES.read(path) {
      readPlainTextIdnaMappingTable()
    }
  return buildIdnaMappingTableData(table)
}

/**
 * Generate a file containing the mapping table's string literals, like this:
 *
 * ```

    @BeforeAll
    static void setup() throws Exception {
        try (InputStream is = MavenModelVersionTest.class.getResourceAsStream("/xml/pom.xml")) {
            model = new MavenStaxReader().read(is);
        }
    }

    @Test
    void testV4Model() {
        assertEquals("4.0.0", new MavenModelVersion().getModelVersion(model));
    }

    @Test
    void testV4ModelVersion() {

                                    }
                                }
                            },
                        },
                    },
                    "summary": "Read Items",
                    "operationId": "read_items_items__get",
                    "parameters": [
                        {
                            "required": False,
                            "schema": IsDict(

                                    }
                                }
                            },
                        },
                    },
                    "summary": "Read Items",
                    "operationId": "read_items_items__get",
                    "parameters": [
                        {
                            "required": True,

                        d.listFiles();
//                      System.out.print('l');
                    } else if (r < 1.0) {
                        InputStream in = f.getInputStream();
                        while (in.read(buf) > 0) {
//                          System.out.print('r');
                        }
                        in.close();
                    }
                } catch (IOException ioe) {

    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/items/": {
                "post": {
                    "summary": "Read Items",
                    "operationId": "read_items_items__post",
                    "requestBody": {
                        "content": {
                            "application/x-www-form-urlencoded": {

                                    }
                                }
                            },
                        },
                    },
                    "summary": "Read Items",
                    "operationId": "read_items_items__item_id__put",
                    "parameters": [
                        {
                            "required": True,
                            "schema": {

The word "**server**" is commonly used to refer to both the remote/cloud computer (the physical or virtual machine) and also the program that is running on that machine (e.g. Uvicorn).

Just keep in mind that when you read "server" in general, it could refer to one of those two things.

    }


    static int readn ( InputStream in, byte[] b, int off, int len ) throws IOException {
        int i = 0, n;

        while ( i < len ) {
            n = in.read(b, off + i, len - i);
            if ( n <= 0 ) {
                break;
            }
            i += n;
        }

        return i;
    }