<p>To learn the fundamentals of systems architecture, start with the core concepts like hardware-software interaction, data flow, network design, and scalability. Online courses (Coursera, edX, Udemy), technical books, and hands-on practice with architecture diagrams or case studies can help a lot.</p><p>Interestingly, structured industries like construction also follow system-based thinking—for example, in electrical estimating services where detailed planning and layered systems play a major role in successful project execution.</p><p>Understanding systems in different domains can actually sharpen your architectural thinking overall.</p>