He said he could "understand the dismay" at the withdrawal or merger of some historic units with close ties to areas of the UK, but said that withdrawal of a unit did not equal redundancy for its members, many of whom could be redeployed.

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An exabyte is a unit of information or computer storage equal to 1 quintillion bytes.

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More sales equal larger economies of scale, which lowers per-unit costs of production for businesses and cuts prices for consumers.

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