FOCAL-71 | ⊕ 1971 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | 1971 version of FOCAL |
INTERP | ⊕ 1971 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | Burroughs conversational system |
PS/8 FOCAL | ⊕ 1971 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States |