Problems with storing mainframe data Plymouth City Council was not able to store their mainframe data (in COLD format) for any longer than 120 days. The data had to be archived to microfiche and CD three times a year, so no legacy data was searchable electronically. Manual retrieval was the only way of locating documents. This takes a long time and there were added inconveniences such as mis-filing, and documents being stored at the other end of

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