| ACT III | ⊕ 1961 | ↓ ↑ ⊕ Multi-purpose | ⊕ Generalised programming | ⊕ United States | Machine independent language |
| PERT | ⊕ 1961 | ↓ ↑ ⊕ Multi-purpose | ⊕ Generalised programming | ⊕ United States | McBee Royal general coding system |
| SCRAPS | ⊕ 1961 | ↓ ↑ ⊕ Multi-purpose | ⊕ Generalised programming | ⊕ United States | Signal Corps autocode |