What does SIS mean in File Extensions?

This page is about the meanings of the acronym/abbreviation/shorthand SIS in the Computing field in general and in the File Extensions terminology in particular.

Psion Software Installation file

Computing » File Extensions


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What does SIS mean?

sister, sis(noun)
a female person who has the same parents as another person

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"SIS." Abbreviations.com. STANDS4 LLC, 2016. Web. 25 May 2016. <http://www.abbreviations.com/term/42584>.