The acquisition, processing, storage and dissemination of vocal, pictorial, textual and numerical information by a micro-electronics-based combination of computing and telecommunications (Department of Employment Information Technology). In simple terms it concerns the application of technology to information. The main information technologies used by businesses today to communicate information, are: Telephone and intercom, Mobile phone, Smartphone; Bleeper, Radio pager; Telex, Fax; Prestel / Viewdata / Teletext; Computer, Laptop computer, Notebook or Netbook, Tablet computer; Electronic mail; Internet, Intranet (including the use of social networking websites and online chats); Audio conferencing, Teleconferencing, Video conferencing, Web conferencing.