Compilers and assemblers belong to;System softwareApplication softwareUtility softwareNone of above

Compilers and assemblers belong to System software.

Here's why:

1. System Software: This is the software that directly interacts with the computer hardware to maintain and control the system. It includes operating systems, device drivers, diagnostic tools, servers, windowing systems, utilities, and more. System software ensures all other software and hardware on the computer can operate effectively.

2. Compilers: A compiler is a special program that processes statements written in a particular programming language and turns them into machine language or "code" that a computer's processor uses. It is system software that converts the high-level language into a machine language, which is understandable by the computer.

3. Assemblers: An assembler is a type of computer program that interprets software programs written in assembly language into machine language, code and instructions that can be executed by a computer. Assemblers are considered a part of system software as they operate directly with the hardware of the system.

So, both compilers and assemblers are part of the system software as they work directly with the hardware and operating system of the computer.