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What is a Load Module?
A load module is a compiled object file that contains machine instructions and data. It is generated by a compiler or an assembler in the process of translating source code into a format that a computer can understand and execute. Load modules are typically in a binary format and contain the executable code of a program.
What is an Executable File?
An executable file, on the other hand, is a specific type of load module that is ready to be executed by the operating system. It is the final result of the compilation and linking process and can be directly run by the computer’s processor.
The Difference between Load Modules and Executable Files
While both load modules and executable files contain machine instructions and data, the key difference lies in their readiness to be executed. Load modules are an intermediate step in the software development process and are meant to be linked with other modules to create an executable file.
Load modules can be considered building blocks or libraries of code that can be combined together during the linking phase. They can be shared among different programs, making the development process more efficient and modular.
On the other hand, an executable file is the standalone result of linking and contains all the necessary information to run the program by itself. It includes the necessary code, data, and resources that the program needs to execute without further dependencies.
An executable file can be directly executed by the operating system without any additional processing or linking. It is the final product that the end-users interact with, and it provides the functionality specified by the original source code.
Conclusion
In summary, a load module is an intermediate file generated during the software development process, while an executable file is the final result that is ready to be executed by the computer’s processor. Understanding this difference is important when working with computer systems, as it helps in managing code dependencies and creating standalone executable programs.
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