ALGOL (Computer program language) Computer programming 9 Data processing 6 Compiling (Electronic computers) 3 Congresses 3 Electronic digital computers 3 FORTRAN (Computer program language) 3 Programming 3 List processing (Electronic computers) 2 Mathematical optimization 2 Numerical analysis 2 Programming languages (Electronic computers) 2 Ada (Computer program language) 1 Algebra 1 Compilers (Computer programs) 1 Computer programs 1 DECsystem-10 (Computer) 1 Data structures (Computer science) 1 FORTRAN IV (Computer program language) 1 Linear programming 1 Numerical calculations 1 PL/I (Computer program language) 1 Pascal (Computer program language) 1 Periodicals 1 Problem solving 1 Problems, exercises, etc 1 Programmed instruction 1