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Line 1: The '''IBM 1401 Symbolic Programming System''' ('''SPS''') was an [[assembly language#Assembler\|assembler]] that was developed by [[Gary Mokotoff]], IBM Applied Programming Department, for the [[IBM 1401]] computer, the first of the [[IBM 1400 series]]. One source indicates that "This programming system was announced by IBM with the machine."<ref>[http://www.columbia.edu/acis/history/1401.html 1401 History]</ref> SPS-1 could run on a low-end machine with 1.4K memory, SPS-2 required at least 4K memory.

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