| ↔ Order by name | ↔ Order by year | ↔ Order by year reverse | ↔ Order by Type | ↔ Order by Sammet category |
| Act1 | ⊕ 1982 | ↓ ↑ ⊕ Specialised Languages | ⊕ Actor | ⊕ United States | Actor OO language |
| Actors | ⊕ 1971 | ↓ ↑ ⊕ Specialised Languages | ⊕ Actor | ⊕ United States | Agent based object parallel language |
| Ubik | ⊕ 2000 | ↓ ↑ ⊕ Specialised Languages | ⊕ Actor | ⊕ United States | Generalised ACTORS system |