H ?

1970s languages ↑
High Cold War ↑
Fourth generation ↑

Explore languages for 1976 and Numerical Scientific

GPSS FORTRAN    ⊕ 1976   ↓ ↑ ⊕ Numerical Scientific   ⊕ United States    
WATFIV-S    ⊕ 1976   ↓ ↑ ⊕ Numerical Scientific   ⊕ Canada   WATFIV with structuring facilities