| Abstracto | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Netherlands | Algorithm description language | |
| Abstracto 84 | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Netherlands | ||
| ACL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Application controller language | |
| ACSL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Advanced Continuous Simulation Language | |
| APLOMB | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Array | ⊕ Italy | Structural extensions to APL |
| APLSF | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Array | ⊕ United States | DEC APL with shared system functions and system variables |
| ATLAS | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ Japan | Visual querying system for geographical information systems |
| CGGL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | ||
| COSY | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Graph | ⊕ United Kingdom | |
| DOC | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Tex processing and formatting language | |
| Etude | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Sound-Synthesis | ⊕ United States | Music programming language |
| FGL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Function Graph Language. | |
| GADS | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Geographical query language |
| GDDL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ Japan | Geographical data description language |
| GEO-QUEL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Geographical extensions to QUEL |
| IGL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ Japan | Geographical query language |
| INTERCOL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | module interconnection language | |
| ISPS | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Digital | ⊕ United States | Operational hardware specification language |
| LAS | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Algebraic | Algebra system | |
| MINITAB II | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Columnar sheets | ⊕ United States | Interactive statistical programming |
| OPS3 | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ RETE and production | ⊕ United States | Official Production System version 3 |
| OPS4 | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ RETE and production | ⊕ United States | Official Production System version 4 |
| OPS5 | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ RETE and production | ⊕ United States | Official Production System version 5 |
| Q-GERT | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Graphical simulation system |
| RDL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Requirements and Development Language | |
| SIML/I | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | System simulation language | |
| SIMPL-D | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | SIMPL with data abstraction extensions | |
| SNePS | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Frame languages | ⊕ United States | |
| V | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Graphic language | |
| Wyoming structured APL | ⊕ 1979 | ↓ ↑ ⊕ Specialised Languages | ⊕ Array | ⊕ United States | APL with Dijkstra's structures |