A: Introduction to programming coding languages
What are programming languages?
Programming languages are used to write instructions for computers. They are the medium that programmers use to write computer programs.
Programming languages can be as simple as writing an algorithm on paper or as complex as writing a program that controls a space shuttle. The key is that they give you a way to write instructions that can be understood by a computer.
There are hundreds of different programming languages out there, from very simple ones like Logo, which is a language for kids, to very complex ones like Java, which is a language for building web apps. But what do all these different programming languages have in common?
A: Section review of making your first web app
What do you need to make a web app?
How do you make a web app?
You write code in your chosen programming language. You then run this code inside a web browser (the program that lets you browse the internet). A web browser will display your code as text and images on a webpage. This is called compiling. By looking at this webpage, users can interact with your program and run it without needing any special software installed on their computer. This is called executing. Your program works like a stand-alone application: it runs by itself and users can stop and start it whenever they want. Take a look at this short video to see how web apps work: https://www.youtube.com/watch?v=Dyf2aT39Fug&t=37s
How do you get started?
To get started, you will need three things: