 “Information technology” refers to automated systems for storing, processing, and distributing information. Typically, this involves the use of computers and communication networks. The amount of information that can be stored or processed in an information system depends on the technology used. The capacity of the technology has increased rapidly over the past decades, in accordance with Moore’s law. This holds for storage capacity, processing capacity, and communication bandwidth. We are now capable of storing and processing data on the exabyte level. For illustration, to store 100 exabytes of data on 720 MB CD-ROM discs would require a stack of them that would almost reach the moon.