Tags: Programming Language.
The A-0 system (Arithmetic Language version 0) written by Grace Hopper in 1951 and 1952 for the UNIVAC I was the first compiler ever developed for an electronic computer. The A-0 functioned more as a loader or linker than the modern notion of a compiler. A program was specified as a sequence of subroutines and arguments. The subroutines were identified by a numeric code and the arguments to the subroutines were written directly after each subroutine code.