Description: In computing, ‘juice’ refers to the energy or power available for a system, particularly in embedded systems. This term is used to describe the processing capacity and resources that a system can utilize to execute tasks and applications. In the context of operating systems, ‘juice’ becomes a crucial concept. Operating systems allow services to run in user space, which can enhance system stability and security. However, this also means that efficient management of ‘juice’ is essential to ensure that the system operates optimally. The ability of an operating system to handle multiple tasks and processes efficiently largely depends on the amount of ‘juice’ it can leverage. Therefore, in the development of embedded systems, engineers must carefully consider how this ‘juice’ is distributed and utilized to maximize device performance and energy efficiency.