The main elements of a data center are generally divided between facilities (physical location, security measures), enterprise data storage infrastructure (servers, storage resources, subsystems, network connectivity switches, etc.), support infrastructure (power distribution, UPS, backup generators, electrical switching, etc.), and operational equipment. The best way to define a data center is as a physical facility companies use to house their critical applications and data. However, modern solutions allow data centers to be placed in remote locations and function with minimal human interaction.