| DELTA | ⊕ 1975 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ Switzerland | Decision table language |
| Pascal (Jensen and Wirth) | ⊕ 1975 | ↓ ↑ ⊕ Multi-purpose | ⊕ Pascals | ⊕ Switzerland | 1975 revision of Pascal |
| Pascal-S | ⊕ 1975 | ↓ ↑ ⊕ Multi-purpose | ⊕ Pascals | ⊕ Switzerland | |
| PL/0 | ⊕ 1975 | ⊕ Wirth Algols | ⊕ Switzerland | Model language of Wirth |