IS file extension - Modula-3 intermediate assembly file
What is is file? How to open is files?
File type specification:
The IS file extension is associated with the Modula-3 programming language that has been used in research circles. it has not been adopted widely in industry. The .is file stores intermediate assembly data.
Modula-3 was designed by Luca Cardelli, Jim Donahue, Mick Jordan, Bill Kalsow and Greg Nelson at the Digital Equipment Corporation (DEC) Systems Research Center (SRC) and Olivetti in the late 1980s.