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The Internet of Things (IoT) refers to physical devices connected to the internet that can collect, send, and receive data.
👉 In simple terms:
IoT = everyday objects + internet + data
👉 IoT allows devices to:
Basic flow:
Physical objects like:
Sensors collect data like:
Devices connect using:
Stores and processes data.
Apps or dashboards where users interact with devices.
👉 Smart light system:
Students can:
👉 IoT is about:
👉 “IoT is not just about smart devices—it is about creating smart solutions for real-world problems.”
API stands for Application Programming Interface.
👉 In simple terms:
An API allows different software applications to communicate with each other.
Think of an API like a waiter in a restaurant:
👉 You don’t go to the kitchen yourself—the API does the work.
👉 This is called Request → Response
Used over the internet
Example: Getting data from a website
These are actions you can perform:
An endpoint is a URL where an API is accessed.
Example:
https://api.example.com/users
👉 This is where requests are sent.
JSON stands for JavaScript Object Notation.
👉 It is the format APIs use to send data.
Example:
{
"name": "John",
"age": 25
}
fetch("https://api.example.com/data")
.then(response => response.json())
.then(data => console.log(data));
👉 This gets data from an API.
👉 APIs connect:
Example:
APIs help:
Students can use APIs to:
👉 API is:
👉 “An API is the messenger that makes different systems talk and work together.”
HTML stands for HyperText Markup Language.
👉 It is the standard language used to create the structure of web pages.
Simple Meaning:
HTML is the skeleton of a website.
HTML helps you:
👉 HTML uses tags to define elements on a page.
<!DOCTYPE html>
<html>
<head>
<title>My First Page</title>
</head>
<body>
<h1>Hello World</h1>
<p>This is my first webpage.</p>
</body>
</html>
<!DOCTYPE html> → Defines HTML version<html> → Root of the page<head> → Information about the page<body> → Content users see👉 HTML is made of tags:
<p>This is a paragraph</p>
<p> → Opening tag</p> → Closing tag<h1>Main Heading</h1>
<h2>Sub Heading</h2>
<p>This is a paragraph.</p>
<a href="https://google.com">Visit Google</a>
<img src="image.jpg" alt="My Image">
<ul>
<li>Item 1</li>
<li>Item 2</li>
</ul>
Attributes provide extra information.
<a href="https://example.com">Click Here</a>
👉 href is an attribute.
<form>
<input type="text" placeholder="Enter your name">
<button>Submit</button>
</form>
👉 Used for:
Common sections:
👉 Together they form a complete website:
<!DOCTYPE html>
<html>
<head>
<title>My Website</title>
</head>
<body>
<h1>Welcome to My Site</h1>
<p>This is my first website.</p>
<a href="#">Click Me</a>
</body>
</html>
Students can use HTML to:
👉 HTML is:
👉 “If there is no HTML, there is no website—everything starts from structure.”
Hobby (Free) Plan You can have up to 200 projects (websites/apps) under one account. Each project can have its own: Production deploy...