FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The lines that start with # in your code are preprocessor directives. They run as the first step in the compilation process before your code is actually compiled.

Detailed explanation-2: -Compilers analyze and convert source code written in languages such as Java, C++, C# or Swift. They’re commonly used to generate machine code or bytecode that can be executed by the target host system.

Detailed explanation-3: -Preprocessing is the first pass of any C compilation. It processes include-files, conditional compilation instructions and macros. Compilation is the second pass. It takes the output of the preprocessor, and the source code, and generates assembler source code.

Detailed explanation-4: -Explanation: Preprocessor just replaces whatever is given compiler then checks for error at the replaced part of the code. Here it is not replaced anywhere. 5. C preprocessor is conceptually the first step during compilation.