Why do you need loader and linker after compilation operation to run any program?

After compilation, the source code is transformed into object code, which is not yet executable. The loader is needed to load this object code into memory and allocate necessary resources, while the linker resolves references between different object files and libraries, combining them into a single executable file. Without these steps, the program wouldn't be properly organized in memory or linked to the required functions, making it impossible to run.