| ACT | ⊕ 1958 | ↓ ↑ ⊕ Experimental and other | ⊕ Generalised programming | ⊕ United States | Autocode Coding system |
| CLIP | ⊕ 1958 | ↓ ↑ ⊕ Experimental and other | ⊕ Information algebra | ⊕ United States | Compiler Language for Information Processing |
| Learner | ⊕ 1958 | ↓ ↑ ⊕ Experimental and other | ⊕ United States | Self-creating programming system |