The IBM 1401 compiles and runs FORTRAN II

We attempt to compile and run a simple FORTRAN program on our vintage 1959 IBM mainframe computer at the Computer History Museum. FORTRAN is a big stretch for this business oriented machine, with 16k memory and a CPU not meant at all for scientific applications. Even integer multiply and divide instructions are an optional feature on the base machine! Success not guaranteed. Come see the IBM 1401 computer at the Computer History Museum in Mountain View, California, USA: