Source code is any collection of computer instructions (possibly with comments) written using some human-readable computer language, usually as text. The code is then compiled into binarycode machine code that the computer can directly execute. Alternative, it can be converted on the fly, known as interpretation.

Common programs in Puppy are available ready compiled as software software packages. To compile in Puppy you will need the file from the devx devx SFS.

CompilingIndex Compiling Index

BinaryCode Binary Code - compiled code

Source code on Wikipedia