Sometimes there is more than one assembler for the same architecture, and sometimes an assembler is specific to an operating system or to particular operating systems. Most assembly languages do not provide specific syntax for operating system calls, and most assembly languages can be used universally with any operating system,However, that does not mean that the assembler programs implementing those languages are universal. as the language provides access to all the real capabilities of the processor, upon which all system call mechanisms ultimately rest. In contrast to assembly languages, most high-level programming languages are generally portable across multiple architectures but require interpreting or compiling, much more complicated tasks than assembling.
sometimes there is more than one assembler for the same architecture and sometimes an assembler is specific to an operating system or to particular operating systems most assembly languages do not provide specific syntax for operating system calls and most assembly languages can be used universally with any operating systemhowever that does not mean that the assembler programs implementing those languages are universal as the language provides access to all the real capabilities of the processor upon which all system call mechanisms ultimately rest in contrast to assembly languages most high-level programming languages are generally portable across multiple architectures but require interpreting or compiling much more complicated tasks than assembling