Systems architecture is like when you put together pieces of a puzzle. All of these pieces fit together to form a bigger picture. Each piece has its own individual job to do but needs to work with the others to make the whole thing work. The pieces can be things like computers, networks, storage devices, software, or user interface components. All of these pieces need to work together so that the system can do what it's supposed to do. So a lot of planning and thought goes into making sure that all of the pieces fit together and work properly, and that's what systems architecture is all about.