The DIGITAL Software Corp Programming & User's Guide for VAX FORTRAN V4.0 is a vintage user manual published by Digital Equipment Corporation in 1984. This guide provides detailed programming instructions and information for users of the VAX FORTRAN V4.0 software, offering valuable insights and guidance for computer programming enthusiasts and collectors of vintage computing technology. Made in the United States, this manual is a unique piece of digital history that captures the essence of computing in the 1980s.