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The impact of electronic publishing on library services and resources in the UK

3.2 Typology of problems and opportunities relating to electronic publishing

		  BIT MAPPED         CHARACTER CODED        MIXED
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DELIVERED ON      Videodisc          Text CD-ROMs           Multi-media 
PHYSICAL MEDIUM   ADONIS discs       Software                 CD-ROM 
                  Photo CD           Databases on           CD-I          
                                       magnetic tape        CDTV
                                     Solid-state
                                       electronic books
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DELIVERED BY      Teletext	     Online databases
COMMUNICATION     Videotex           Software
CHANNEL           Fax services       Electronic mail and
                                     electronic journals
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