Infrastructure is a term that encompasses all of the basic systems that businesses, communities, or entire states and countries rely on for their regular functioning. Traditionally, infrastructure refers to physical systems such as transportation networks, water pipes and sewage treatment facilities, and the electricity grid. This type of infrastructure is fundamentally important for living our lives in the modern world, and the design and maintenance of these systems is a central concern of city planning.
In recent years, infrastructure has also come to mean the computing systems and network architecture that organizations of all kinds rely on for their information technology (IT) needs. IT infrastructure used to consist mostly of on-premise system components and hardware like computers, servers, and local area networks (LANs). However, today’s IT systems increasingly rely on cloud computing infrastructure to provide scalable and secure services such as data storage and compute resources.