URLs and their structure in Intro to Computing - Flowchart & Logic Diagram

Process Overview

A URL (Uniform Resource Locator) is like an address for a webpage or resource on the internet. This flowchart shows how a URL is broken down into parts to find and display the right webpage.

Flowchart

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This flowchart shows the step-by-step process of breaking down a URL into its parts: protocol, domain, port, path, query string, and fragment.

Step-by-Step Trace - 12 Steps

Step 1: Receive full URL string: 'https://www.example.com:8080/folder/page.html?id=123#section2'

Step 2: Check if URL starts with 'http://' or 'https://'

Step 3: Extract Protocol: 'https'

Step 4: Extract Domain name: 'www.example.com'

Step 5: Check if Port number is specified

Step 6: Extract Port number: '8080'

Step 7: Extract Path: '/folder/page.html'

Step 8: Check if Query string exists

Step 9: Extract Query string parameters: 'id=123'

Step 10: Check if Fragment exists

Step 11: Extract Fragment identifier: 'section2'

Step 12: End of URL parsing process

Diagram

 +-------------------+      +------------------+      +----------------+
 |    Protocol       | ---> |     Domain       | ---> |     Port       |
 +-------------------+      +------------------+      +----------------+
          |                        |                        |
          v                        v                        v
 +-------------------+      +------------------+      +----------------+
 |      Path         | ---> |   Query String   | ---> |    Fragment    |
 +-------------------+      +------------------+      +----------------+

This diagram shows the main parts of a URL arranged in order: Protocol, Domain, Port, Path, Query String, and Fragment.

Flowchart Quiz - 3 Questions

What part of the URL tells the browser how to communicate with the server?

A Path

B Domain

C Protocol

D Fragment

Key Result

A URL is like a detailed address that guides your browser step-by-step to find the exact webpage and content you want.