FORTRANSIT definition language
Fortran Internal Translator.
A subset of Fortran
translated into IT
on the IBM 650
. It was in use in the late 1950s and early 1960s.
Compilation took place in several steps (using punched cards
as the only input/output media). FORTRANSIT was converted to IT Internal Translator
which was converted into SOAP
and thence to machine code
In the SOAP -> machine code step, the user had to include card decks for all the subroutines used in his FORTRANSIT program (including e.g. square root, sine, and even basic floating point
[Sammet 1969, p. 141].