A data center is a facility that keeps a huge number of hosting servers. The web servers can be used for a number of functions – Internet hosting, file and image storage, computing, and so forth. All big companies that supply online services have their web servers in one or a number of data centers since such a facility can supply the required environment and protection for the info stored on the machines. Including environmental adjustments for the humidity and temperature so as to ensure the optimal performance and long life of the servers, backup generators, hardware monitoring and last, but not least, physical security as to ensure that that your information cannot be accessed by an unauthorized third-party. A badly performing data center can very easily undermine the services a firm provides.