HELP! * GREEN=global GREY=local Global HTML version of Foils prepared 12 October 1995
Foil 25 Role of Caching in the Virtual University -- I
From Challenges and Opportunities for Information Technology in ECS ECS Faculty Retreat -- 15 October 95. byGeoffrey C. Fox * See also color IMAGE
Caching can either be teacher driven (preselect material) or student driven as in computer paging
As education naturally has groups (a class) of over 20 students browsing related material one can expect caching to be very effective
Caching helps with both bandwidth and ensuring students browse relevant and appropriate material
Experiments by NASA Langley find that 95% of material accessed by students is found in Cache -- implies that 28.8kbaud connection purchased by the school "acts" like a dedicated T1 line
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