Software Writer's Language definition language
(SWL) /swil/ An industrial strength dialect of Pascal
that allowed multiple source code
files, originally developed at Control Data Corporation (CDC) prior to 1973. Development continued at the Integrated Systems Laboratory
. SWL was adopted by NCR as its corporate operating system
implementation language (1978-1982+). The NCR SWL dialect was renamed NCRL (NCR Language) in 1981 and continued development [until ?].