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Module 1.1: What Is ChatGPT and Why Should You Care?

ChatGPT is everywhere. Your colleagues mention it in meetings. LinkedIn is full of posts about it. Your competitor just announced they are "using AI" to do something faster. And you are wondering: is this actually useful, or is it just hype?

Here is the short answer: it is genuinely useful, but only if you know how to use it properly. Most people try ChatGPT once, get a mediocre response, and conclude it is overhyped. That is like test-driving a car without knowing how to shift gears and concluding cars are useless.

This course will teach you to shift gears.

What ChatGPT Actually Is

ChatGPT is a large language model (LLM) built by OpenAI. In plain language: it is a computer program that has read an enormous amount of text and learned patterns in how language works. When you type something, it predicts the most likely useful response based on those patterns.

It is not a search engine. It does not look things up in real time (though newer versions can browse the web). It is not a database of facts. And it is definitely not a human — it does not "think" or "understand" the way you do.

What it is good at:

  • Writing and editing text — emails, reports, summaries, social media posts
  • Brainstorming ideas — generating options you might not have considered
  • Explaining complex topics — breaking down jargon into plain language
  • Structuring information — organizing messy notes into clear formats
  • Drafting repetitive content — templates, standard responses, documentation

What it is not good at:

  • Guaranteed accuracy — it can generate plausible-sounding but incorrect information
  • Real-time information — its training data has a cutoff date
  • Confidential reasoning — anything you type may be used to improve the model (unless you opt out)
  • Replacing expertise — it is a tool, not a substitute for domain knowledge

How to Access ChatGPT

Getting started takes about two minutes:

  1. Go to chat.openai.com
  2. Create an account with your email or Google/Microsoft account
  3. Start typing in the message box

That is it. The free tier gives you access to GPT-3.5, which is perfectly capable for most tasks. GPT-4 (available with a Plus subscription at $20/month) is more capable for complex reasoning, longer texts, and nuanced instructions.

Free vs. Paid: What You Actually Get

For most professionals starting out, the free tier is enough. Here is when to consider upgrading:

  • Stay free if: You use ChatGPT a few times per week for emails, brainstorming, and simple writing tasks
  • Upgrade to Plus if: You use it daily, need longer and more nuanced outputs, want image generation (DALL-E), or need web browsing for current information
  • Upgrade to Team if: Your organization needs shared workspaces, admin controls, and guaranteed data privacy

The Interface: A Quick Tour

ChatGPT's interface is simple, but there are a few things worth knowing:

The Chat Window

This is where you type your messages (called "prompts") and see ChatGPT's responses. Each conversation is a thread — ChatGPT remembers everything said earlier in the same thread. This is important: you can refer back to previous messages and build on them.

The Sidebar

Your conversation history lives here. Each conversation is saved automatically. You can rename conversations to find them later (highly recommended — "New Chat" x 47 is not helpful).

Custom Instructions

Found in Settings, this feature lets you tell ChatGPT about yourself and your preferences once, rather than repeating them every conversation. For example, you can set:

  • "I work in marketing at a B2B software company"
  • "I prefer concise, bullet-pointed responses"
  • "I am based in the Netherlands"

We will cover custom instructions in detail in Module 6.

Your First Conversation

Let us start with something practical. Open ChatGPT and try this prompt:

"I need to write a short email to a client explaining that our project timeline is delayed by two weeks. The tone should be professional but honest. The delay is caused by unexpected technical complexity in the integration work."

Notice what makes this prompt work:

  • It specifies the task (write an email)
  • It defines the audience (a client)
  • It sets the tone (professional but honest)
  • It gives context (the reason for the delay)

The response you get should be a solid first draft. It might not be perfect — maybe the tone is too formal, or it is longer than you wanted. That is fine. In the next lesson, you will learn how to refine it through follow-up prompts.

Common First-Timer Mistakes

These are the mistakes we see most often when people start using ChatGPT:

1. Being Too Vague

Bad: "Help me with an email"
Better: "Write a 3-sentence follow-up email to a potential client I met at a conference last week. We discussed their need for a customer portal."

2. Expecting Perfection on the First Try

ChatGPT is a drafting partner, not a mind reader. Plan to iterate. Your first prompt gets you 70% of the way there. Follow-up prompts close the gap.

3. Not Providing Context

ChatGPT does not know your industry, your company, your audience, or your preferences unless you tell it. More context = better output. Always.

4. Treating It Like Google

"What is the weather in Amsterdam?" is a search query, not a good use of ChatGPT. Use it for tasks that require generating, transforming, or structuring text — not for looking up facts.

Key Takeaway

ChatGPT is a powerful writing and thinking tool, but it requires skill to use effectively. The quality of your output is directly proportional to the quality of your input. In this course, you will learn to give high-quality input — clear, specific, context-rich prompts that consistently produce useful results.

In the next lesson, we will have your first real working session with ChatGPT, where you will complete three practical exercises that mirror real work tasks.