All spheres interact with each other in some way. Some spheres depend on other (Or all) spheres to function. For example, the Biosphere requires water, air, and a foundational living area to survive. Some spheres alter the ways that others work and change their effectiveness by way of function. (Mountains change rainfall) Some spheres contain parts of others, for example, water from the hydrosphere is in the atmosphere, but it is still considered part of the atmosphere.
All components in a computer work together in a system and interact for the best performance. Processors require all other components to function before working. They require power, essential files, and somewhere to store recently calculated values, and of course power. Processers like CPUs and GPUs contain parts of other components like short-term storage in the form of cache and VRAM. This is due to the increased speed that comes with local storage.
Comparison
Processors are the most like the Biosphere because they bring life to a system by using its other components. Power supplies are the most like the Geosphere because they provide a foundational mechanic for the other components of a system.