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Telephone calls constituted 98% of the telecommunicated information in 2002. The amount of data transmitted over telecommunication systems in 2002 was nearly 18 exabytes-three and a half times more than was recorded on non-volatile storage. This was about twice the data produced in 2000. Global capacity, digitization, and trends Ī 2003 UC Berkeley report estimated that about five exabytes of new information were produced in 2002 and that 92% of this data was stored on hard disk drives. atmosphere, smoke) or a liquid surface such as a lake would be considered a temporary recording medium if at all. Data such as smoke signals or skywriting are temporary by nature. Volatile organic compounds may be used to preserve the environment or to purposely make data expire over time. Some recording media may be temporary either by design or by nature. With ( traditional art) static media, art materials such as crayons may be considered both equipment and medium as the wax, charcoal or chalk material from the equipment becomes part of the surface of the medium. With electronic media, the data and the recording media are sometimes referred to as "software" despite the more common use of the word to describe computer software.
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Digital information is stored on electronic media in many different recording formats. Newly created information is distributed and can be stored in four storage media–print, film, magnetic, and optical–and seen or heard in four information flows–telephone, radio and TV, and the Internet as well as being observed directly. 2 Global capacity, digitization, and trendsĪ recording medium is a physical material that holds information.
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