At NCAR there was a structured Fortran preprocessor named IFTRAN that was in 
use for a long time.  The earlier versions of the NCAR Local Network (NLNET), 
later renamed MASnet (Mainframe and Server network), as well as a variety of 
graphics packages were written in it.  I still have the IFTRAN to C translator 
I wrote to convert everything to C code so we didn’t have to spend money on 
Fortran compilers on the Unix boxes.

MASnet was a Hyperchannel cross bar network used for batch job submissions and 
data transfers to/from the Mass Storage Server (MSS), the supercomputers and 
the front end servers.  Eventually it was migrated to run on top of TCP/IP and 
Ethernet when the Hyperchannel hardware got expensive to maintain and 
comparatively slow.

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