| GTPL | ⊕ 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Graph | Graph-theoretical extensions to Fortran | |
| MIX/360 | ⊕ 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Symbolic assemblers | ⊕ United States | Paper assembler for TAOCP |
| OSL/2 | ⊕ 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Other algorithmic | ⊕ United States | Systems language |
| PSL | ⊕ 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Goal description | ⊕ United States | Problem Statement Language |
| TSAR | ⊕ 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Statistical | ⊕ United States | Statistical system for taped-stored data |