Referred to by its operators as the "slick-32". The SLQ-32 was originally conceived in the 1970s to augment the AN/WLR-1, which had been in service since the early 1960s. It was later determined to save costs to replace the various WLR-1 series suites with the SLQ-32 as a stand-alone system. As originally designed, the SLQ-32 was produced in three variants, the (V)1, (V)2 and (V)3. Later in its service life, two additional versions were built, the (V)4 and (V)5. The Air Transport Rack sized processors were supplied by ROLM Mil-Spec Computers in San Jose, CA.