"mapper." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/mapper>.
mapper. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/mapper
mapper - Computer Definition
(MAintaining, Preparing and Processing Executive Reports) A Unisys mainframe fourth-generation language (4GL). In 1980, it was introduced as a high-level report writer and was later turned into a full-featured development system used successfully by non-technical users.