Source Code

November 21, 2023 - Around 2 mins mins to read

Understanding Source Code

Source code is a set of text-based instructions that form a computer program written in a high-level programming language. It consists of words, letters, symbols, and more.

To execute these instructions, a computer needs to translate them from the high-level language (source code) into a machine language that it can understand. This translation is done by a compiler or an interpreter, enabling the execution of programs. Programs can be run by executing their compiled form, using an interpreter, or, for more complex tasks, by directly executing their source code.

Typically, the source code of a program is stored in one or more text files containing multiple lines of code. The format of these files may vary depending on the programming language, but programs usually have one or more files with extensions like .c, .cpp, .CPP, or .cxx (e.g., filename.c). In most cases, the file name corresponds to the name of the main function or method of the program, and the content of the file consists solely of that function definition and related declarations and statements.

Source Code vs Open Source

The term “source code” refers to the fundamental code of a program. It can be written in programming languages like JavaScript or PHP, but it is still readable text.

In contrast, open-source software is developed in a collaborative environment where the source code is accessible to everyone. The purpose of this openness is to enable users to understand how the program works and allow other developers to modify it for creating other programs.

Open-source software, also known as free/libre open-source software (FLOSS), can be copied, modified, distributed, and shared because its source code is available to the public for free.

Open-source software is the most prominent example of open-source development and is often compared to closed-source software, which keeps the source code hidden from users.

The Importance of Having Your Source Code

Having your source code allows you to make necessary edits. It ensures the utmost protection of your product and guarantees that you receive all the latest updates and security patches.

Furthermore, having your source code is crucial when transferring a license to a new owner or creating a backup.

The source code serves as the core of your app or website. Without it, you rely on the development firm that built the app or website.

Glossary