Linker, Object Code, and Header File Quiz

A linker is a program that combines multiple object files into a single executable file. It resolves references between files, assigns final addresses to variables and functions, and prepares the executable for loading into memory.

Object code is the output of the compiler after translating the source code into machine code but before the linker combines it into an executable. It consists of machine instructions and data. The linker takes multiple object code files and links them together to create a complete program.

A header file is a file that contains declarations of functions, variables, and macros that can be shared across multiple source code files. It allows for modular and reusable code, as well as providing an interface for other code to interact with. The 'header file' plays a crucial role in software development by promoting code organization and reusability.