short answer: executable code is a program that is ready to be used write now.
long answer:
writing a computer program is generally a 2 part process (there are exceptions):
1) programmer writes the code
2) programmer runs his code through a special program called a Compiler
the Compiler is responsible for taking code that a programmer can understand, and turning it into something that a computer can understand. executable code is (usually) code that has been compiled.
executable program
When compiled, comments produce no executable code. Rather, comments are intended to let other developers know what is happening in a program.
Compliers are used to convert C++ into assembly code. Then a tool called an "assembler" converts that code into machine code. Finally, a "linker" connects all of those machine code files into a single executable.
A module is not an executable but, depending on the type of module, it may contain executable code. To invoke that code, you will generally need to execute a machine-code program that can interpret the code within the module. Without knowing the specifics of the module in question, it is impossible to determine how any code within it may be executed.
Binary object code executable.
There's no such thing as 'Executable Code'! The source code is compiled and the final result is an executable.
In general you do not. Nearly all executable files are coded in a computer programming language, and then compiled into executable files. So to modify an executable, you would need the source code for the program, you would modify the source code and then recompile into a NEW version of the executable. Linux does provide for an executable script file, but these are more scripts than executable files.
Executable code.
executable program
Source code is a sequence of executable instructions written in a particular language. Pseudo code is a sequence of non-executable instructions. It is also called algorithm written in plain English
When compiled, comments produce no executable code. Rather, comments are intended to let other developers know what is happening in a program.
Compliers are used to convert C++ into assembly code. Then a tool called an "assembler" converts that code into machine code. Finally, a "linker" connects all of those machine code files into a single executable.
The linker.
Compilers are needed to convert human readable source code into machine executable code.
A module is not an executable but, depending on the type of module, it may contain executable code. To invoke that code, you will generally need to execute a machine-code program that can interpret the code within the module. Without knowing the specifics of the module in question, it is impossible to determine how any code within it may be executed.
Binary object code executable.
You mean the original code? Impossible. You can, however, disassemble the executable to see the code in Assembly.