Drupal is powerful, it's undeniable. What's worrying is that you can get pretty far without understanding much about web development. This poses some challenges for novice web developers.
By simply installing the Acquia Dev Desktop you can quickly mock up a great new site with a dizzying array of features which would take you probably thousands of hours to code by hand. That is also not counting the years it would take you to build the relevant developer skills. The Dev Desktop includes a web server, scripts, database software, libraries - and all the components of Drupal itself wrapped into a nice little control panel package.
And that is the cool (also scary!) thing about Drupal, you can really hit the ground running if you're brand new to web development. What you want to avoid is hitting the ground with your face.
Recently, I received a question from a new Drupal user.
I am able to access my website from my computer Acquia Drupal Control Panel at localhost:8082 How do I pull my domain name example.com to localhost:8082 so the public can access? Also I would like to build multiple Drupal websites with different domain names. How do I accomplish this goal using Acquia Dev Desktop?
I've seen similar questions before. This person is a novice in web development and possibly just starting on a new career. While they have created a possibly magical and amazing website with Drupal, they are stuck because they don't know how to get it online. Or later, after they do get a host, they don't know how to maintain and update the site.
What do you need to know first?
When I get asked questions like this from novice, I am taken aback. So... where should we start? Even if you use the web everyday, no one expects you to understand how it works. I relate this to my knowledge of plumbing. OK, I can turn on the faucet, but I haven't got a clue of how that water gets from the reservoir.
However, as a novice web developer you need to start understanding the plumbing of the web as well. There are so many great resources about learning Drupal which jump right into using it as an end product, and don't carefully explain that underlying plumbing.
I made this short video to explain some of the concepts underlying Drupal to a novice developer. Sorry about the sound in the beginning, it gets a bit better. Before you watch this one, you might also want to check out this quick video from Doug Vann about How the Web Works.