Operating System In Heterogeneous Computing. Understanding heterogeneous computing:- Heterogeneous computing system (HCS) is a collection of different processing elements such as general-purpose(GPPs), field- programmable gate arrays(FPGAs), neural processing units(NPU), digital signal processors(DSP), graphics processing units(GPUs). To improve the performance, flexibility, robustness and energy efficiency of the system. Operating systems for HCS:- Partitioned operating system are a type of OS which allows multiple tasks to run simultaneously on the same computing system and also maintaining the degree of isolation between tasks. examples:- 1.Linux:- it supports heterogeneous system architecture which aims to standardize the architecture for heterogeneous systems. It allows different types of processors to work together flawlessly. It also supports OpenCL (open computing language) and CUDA (compute unified device architecture). 2.Windows:- it supports Direct X and DirectCompute, which