| BBN JOSS | ⊕ 1965 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | JOSS rewritten at BBN |
| COMPAX | ⊕ 1965 | ↓ ↑ ⊕ On-Line | ⊕ Cell-based | ⊕ India | Visual language for the BUBBLE-TALK system |
| IMP | ⊕ 1965 | ↓ ↑ ⊕ On-Line | ⊕ Other Conversational | ⊕ United States | Lampson interactive debugging environment |
| JOSS II | ⊕ 1965 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS II | ⊕ United States | Version 2 of JOSS |
| Lincoln Reckoner | ⊕ 1965 | ↓ ↑ ⊕ On-Line | ⊕ Arithmetic | ⊕ United States | Interactive maths at Lincoln Labs |
| RUSH | ⊕ 1965 | ↓ ↑ ⊕ On-Line | ⊕ Other PL/Is | ⊕ United States | Interactive Dialect of PL/I |
| TOCS | ⊕ 1965 | ↓ ↑ ⊕ On-Line | ⊕ Arithmetic | ⊕ United States | TACT Online Computer System |