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Communications of the ACM

Communications of the ACM

Design and characteristics of a variable-length record sort using new fixed-length record sorting techniques

This paper describes the application of several new techniques for sorting fixed-length records to the problem of variable-length record sorting. The techniques have been implemented on a Sylvania 9400 computer system with 32,000 fixed-length words of memory. Specifically, the techniques sequence variable-length records of unrestricted size, produce long initial strings of data, merge strings of data at the power of T - 1, where T is the number of work tapes in a system, and do not restrict the volume of input data.

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