| ↔ Order by name | ↔ Order by year | ↔ Order by year reverse | ↔ Order by Type | ↔ Order by Sammet category |
| DSPL | ⊕ 1967 | ↓ ↑ ⊕ Specialised Languages | ⊕ Category theory | ⊕ United States | Display Systems Programming Language |
| SYMBOL | ⊕ 1971 | ↓ ↑ ⊕ Specialised Languages | ⊕ Category theory | ⊕ United States | Hardware based data structure programming language |