Source code is a collection of statements and instructions that are written by a computer programmer using standard programming languages. Source codes are readable to humans, but must be translated into machine language, or object code, through a compiler.
Source codes are the basis for all computer programs. They contain statements, such as instructions and declarations, which instruct software programs on how to function. Some programs contain multiple source coding text files that are stored in the hard drive or in a database. Computer programmers add useful comments to their source code in order to help other developers understand it. While large programs thousands of files, small programs may only use just one code. However, a single file that contains all the program’s functions and variables may create problems because it’s sometimes hard to locate specific sections of code. If there are multiple source files, the program will be organized and structured into different sections. Although text that has been marked up in HTML is referred to as code, it is a markup language that describes the tasks to be performed by a computer, such as how to format and display text.
Each programming language uses a unique syntax to represent the basic programming algorithm. This means that source codes will vary from language to language. Certain similar languages, such as C and C+, will share basic style and syntax elements. There are standard programming styles that regularly appear in most languages. For example, almost all languages include a system to add comments and a search function to view readable code. There are actually several comment styles that are used in popular programming languages. Before the code understand by the computer as an executable task, all source codes must be run through a compiler and converted into machine language. In certain cases, such as Python’s interactive mode, the compiler conversion creates an executable file that stores the machine language instructions for later use.
Finally, a source code either uses object oriented programming, such as PHP and JAVA or procedure-oriented programming, such as C.