blocked records

from The Free On-line Dictionary of Computing (8 July 2008)
blocked records

   <storage> Several {records} written as a contiguous block on
   {magnetic tape} so that they may be accessed in a single I/O
   operation.  Blocking increases the amount of data that may be
   stored on a tape because there are fewer {inter-block gaps}.
   It requires that the tape drive or processor have a
   sufficiently large buffer to store the whole block.

   (1995-04-13)
    

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