A server farm refers to a collection of servers housed together to provide web hosting services, manage applications, and store data. Server farms allow organizations to efficiently handle high traffic demands, distribute workloads, and ensure redundancy. The architecture typically involves multiple servers working collaboratively to ensure reliability and performance. By consolidating hardware in a single location, server farms can optimize energy consumption, facilitate easier maintenance, and scale resources up or down as needed, making them essential for modern web services and cloud computing.