| Bonczek | ⊕ 1978 | ||||
| BS12 | ⊕ 1978 | ⊕ United Kingdom | |||
| CAMIL | ⊕ 1978 | ⊕ United States | |||
| CPS | ⊕ 1978 | ⊕ United States | Continuation Passing Style | ||
| CSP | ⊕ 1978 | ⊕ United Kingdom | Communicating Sequential Processes | ||
| Janus | ⊕ 1978 | ⊕ United States | Universal intermediate language | ||
| LINUS | ⊕ 1978 | ⊕ United States | Querying language | ||
| MINIMAL BASIC | ⊕ 1978 | ⊕ United States | ANSI and ISO standard subsets of BASIC | ||
| MPSX | ⊕ 1978 | ⊕ United States | |||
| Parasol | ⊕ 1978 | ⊕ United States | |||
| PIGLI | ⊕ 1978 | ⊕ United States | |||
| RPL 11M | ⊕ 1978 | ⊕ United Kingdom | |||
| Setun | ⊕ 1978 | ⊕ Russian Federation | Ternary logic autocode | ||
| SHEEP | ⊕ 1978 | ⊕ Denmark | |||
| STIGO | ⊕ 1978 | ||||
| THLL | ⊕ 1978 | ||||
| Yellow | ⊕ 1978 | ⊕ United States | Ada proposal language |