| http://www.w3.org/ns/prov#value | - Guidelines for effective use of audiovisual aids 357 ??? They are used as a voice recognition system. ??? They store huge amounts of information in formats such as text, sound, picture, film, etc. ??? They take up very little space, usually that of one table; you could also have just a notebook-type computer on your palm. ??? They are portable.
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