| ALGAN | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Algebraic | ⊕ Germany | An extension of FORTRAN to solve sets of linear equations |
| AMBIT | ⊕ 1964 | ↓ ↑ ⊕ String and List Processing | ⊕ Algebraic | ⊕ United States | Algebraic manipulation |
| Klerer-May System | ⊕ 1964 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Algebraic | ||
| OEDIPUS | ⊕ 1964 | ↓ ↑ ⊕ Non-numerical Scientific | ⊕ Algebraic | ⊕ United States | Bell Labs interpretive algebraic system |
| Schoonschip | ⊕ 1964 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Algebraic | ⊕ Switzerland | Symbolic maths |
| STL Online Computer System | ⊕ 1964 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Algebraic | ⊕ United States | Improved version of Tanoga Park CFS |