This is one question overall, I would appreciate your help. Think of a computing system for example [Library's catalog, Your company's HR system, Your company's customer service system etc.] This can be whatever you pick, this is completely up to the Chegg expert to decide the topic.

How has this system evolved over the years? What changes has it gone through to make it more feature rich, accessible and modern and what business benefit was it trying to achieve? What are the technological advances that they have done to distribute the transaction out into a client server model potentially with many layers of server processes servicing a client request? What technologies have gone in to make it open, scalable, reliable and secure? Think about the middleware (non application related stuff ) that is making it possible. (diagrams are welcome).