In military maintenance we use loads of software developed in the 70s on old test stations. These programs slowly get rehosted to newer testers, or until the sy

In military maintenance we use loads of software developed in the 70s on old test stations. These programs slowly get rehosted to newer testers, or until the systems under test go obsolete. Where I work we have hundreds of engineers programming in Teradyne's LASAR software, rehosting old programs onto new digital test platforms. LASAR was developed in the mid 80s and we have it running on VAX and UNIX servers. Since electronics no longer use combinational logic in discrete chips, no newer software is available.