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MOTCLE	ABBREVIATION	DESCRIPTION
DFSORT		Data Facility Sort. An optional, separately priced feature of z/OS, it began its life as the venerable Sort/Merge of the original System/360 OS/360 and DOS/360 operating systems, back in the days when software was free and hardware was what you paid for. It had a reputation for sluggishness, but it was hard to compete with free. Nonetheless, given how much sorting is involved in business batch data processing, competitive sort/merge packages were one of the first software products to hit the market. At one time, SyncSort had over 70% of the market. Computer Associates was founded with an acquired sort/merge package as its first product. Until the 1990s, DFSORT was dogged with performance problems, but started to shake them as each new release bested SyncSort in benchmarks and in-house tests. SyncSort, of course, would then come out with a new release that beat DFSORT. Beyond sorting, DFSORT has become a major utility in its own right, especially with the addition of ICETOOL. See also D
ICETOOL		Utility included with DFSORT and introduced March 1991. Provides existing DFSORT functionality in an easier statement format, along with new capabilities. One operation in ICETOOL replaces several in standard DFSORT.

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