Code development and programming are the processes by which humans instruct computers to perform specific tasks. These instructions, collectively known as code or a program, are written in a specific computer language (like PHP or JavaScript), and they tell the computer what actions to take, when to take them, and how to respond to specific inputs.

To further clarify, let's break down concepts such programming, languages, algorithms and libraries.

Basic concepts

Coding/Programming

Coding or programming is the act of using a programming language to write code. The coder or programmer will use the syntax (rules) of the language to create a sequence of instructions that the computer can understand and execute.

Programming Languages

A programming language is a formal language that follows sets of instructions which are used to produce various kinds of output. They are used in computer programming to implement algorithms. Much like how humans use different languages to communicate with each other, developers use different programming languages to communicate with computers. Different programming languages are used for different tasks. For example, HTML is used to structure content on the web, CSS is used to style this content, and JavaScript is used to add interactivity to web pages. More powerful languages like Python, Java, or C++ can be used for a wide range of tasks, from creating video games to powering complex data analysis.