H ?

1970s languages ↑
High Cold War ↑
Fourth generation ↑

Explore languages for and for year 1974

CSAX    ⊕ 1974        
CSI IBM 360 MACROS    ⊕ 1974        
HSL/1    ⊕ 1974        
LEGOL    ⊕ 1974        
NAVTRANSTAB    ⊕ 1974        
PDL    ⊕ 1974   ↓ ↑ ⊕ Specialised Languages ⊕ Semantic descriptions     Pictorial description language