What computing technology was popular before cloud computing?

Before cloud computing, traditional on-premises computing was popular, where organizations relied on local servers and data centers to host applications and store data. This setup often required significant capital investment in hardware and maintenance, as well as a dedicated IT staff for management. Virtualization technology also gained traction during this period, allowing multiple operating systems to run on a single physical server, improving resource utilization. Additionally, enterprise applications were commonly deployed in a client-server architecture, which required local installations on individual machines.