Editing IBM 7090 (section)

==Software==
The 7090 and 7094 machines were quite successful for their time, and had a wide
variety of software provided for them by IBM.  In addition, there was a very active user community within the user organization, [[SHARE (computing)|SHARE]].

[[IBM 7090/94 IBSYS|IBSYS]] is a "heavy duty" production operating system with numerous subsystem and language support options, among them [[Fortran|FORTRAN]], [[COBOL]], SORT/MERGE, the MAP assembler, and others.

FMS, the [[Fortran Monitor System]], was a more lightweight but still very effective system optimized for batch FORTRAN and assembler programming.  The assembler provided, FAP, ([[IBM 700/7000 series#FORTRAN assembly program|FORTRAN Assembly Program]]), was somewhat less complete than MAP, but provided excellent capabilities for the era.  FMS also incorporated a considerably enhanced derivative of the FORTRAN compiler originally written for the 704 by Backus and his team.