Final answer:
The term that does not fit with the others is Assembler software.
Step-by-step explanation:
The term that does not fit with the others in the given options is d. Assembler software.
Application software, compiler software, and operating system software all belong to the category of software that is used to perform specific tasks or manage computer systems.
Assembler software, on the other hand, is a type of software that translates assembly language code into machine code, which can be executed directly by the computer's hardware.