| Aiken CPC translator | ⊕ 1948 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | Proposed relay code for the Harvard Mark III |
| BRIEF CODE | ⊕ 1948 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Fortran I-III Coeval | ⊕ United States | Pseudocode interpreter |
| Curry programming system | ⊕ 1948 | ↓ ↑ ⊕ Specialised Languages | ⊕ Other US historic | ⊕ United States | Special notation system to program the ENIAC |
| Shannon hardware logic | ⊕ 1948 | ⊕ Initial orders | ⊕ United States | Wiring logic system |