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Página 33
Discs are claimed to have several advantages over magnetic tape for video recording , including speed and economy of duplication of copies and better image resolution . The mechanical scan- ning of videodiscs gives rise to severe ...
Discs are claimed to have several advantages over magnetic tape for video recording , including speed and economy of duplication of copies and better image resolution . The mechanical scan- ning of videodiscs gives rise to severe ...
Página 119
With step - and - repeat filming and duplicating , the initial costs of the master fiche are high but since only a fraction of the number of diazo copies previously produced were needed under the new system , the total cost of the ...
With step - and - repeat filming and duplicating , the initial costs of the master fiche are high but since only a fraction of the number of diazo copies previously produced were needed under the new system , the total cost of the ...
Página 187
6. MICROFORMS - ATTRACTIONS Why choose microforms to fulfil even part of the provision of documentation in an academic library ? In a perfect world we would always acquire and deploy paper copies of material - or would we ?
6. MICROFORMS - ATTRACTIONS Why choose microforms to fulfil even part of the provision of documentation in an academic library ? In a perfect world we would always acquire and deploy paper copies of material - or would we ?
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accepted activities addition applications archival areas Association become Britain British catalogue changes collection colour communication contains copies Corporation cost cover disc disk documents edition electronic equipment existing fiche field filing film format frame important industry interest International issue journal laser librarians Library light London MAGB magnetic major material means medium meeting microfiche microfilm microform micrographics micropublishing offer on-line operation optical organisation original Pergamon Press period positive possible present printed problems produced programme publication published range reader reading records reference reports retrieval Review signal standard storage tape unit University video disc