A data center— also known as a carrier hotel, collocation, or (affectionately) colo— is a place where computers and their accessories are stored. It can occupy almost any portion of a building, from the entire edifice to a single room or floor within it. And since almost every company, large or small, uses computers in its operations, data center design is one of the most rapidly expanding careers in today’s world; and it is a true science. There are many different data center design considerations that a designer must have including an extensive knowledge of electronics, heat reactions, and chemistry. Here are some of its main components.