The term "sW" appears to be a typo or abbreviation that is not recognized in English. Based on context or common usage, it might be intended as "SW," which could refer to various terms such as "software," "southwest," or a similar abbreviation. Please provide more context or clarification for a more accurate definition.
If considered as "software," the term is derived from "soft" (indicating ease of modification) and "ware" (a term for manufactured goods). The term was first used in the 1950s.
If "sW" was meant differently, please clarify for accurate information.