Answer: No, not all the OSs provides facilitation working with multiprocessor.
Explanation: Multiprocessing is the executing different tasks at the same point of time within a system through two or more processors. Multiprocessing is not supported by the single processor operating system(OS) .
Single processor system cannot operate several tasks at the same time and cannot run the processes simultaneously.But, most of the modern operating system are designed in a way that it can support multiprocessing.