EDSAC Initial Orders | ⊕ 1948 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Initial orders | ⊕ United Kingdom | First ever assembler system |
Williams | ⊕ 1948 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Initial orders | ⊕ United Kingdom | Proto-index register for the Manchester Copmuter |