| Manufacturer | Model | Release Date | Quantity |
| ANITA | ANITA 811 | 1972 | 1 |
| Casio | Personal M-1 | 1978 | 1 |
| Commodore | GL-996R | 1975 | 1 |
| Commodore | SR 4190R | 1976 | 1 |
| Commodore | SR-9190R | 1979 | 1 |
| Eltex | 200 | 1976 | 1 |
| Hewlett Packard | HP-25 | 1975 | 1 |
| Hewlett Packard | HP-35 | 1972 | 2 |
| Hewlett Packard | HP-41C | 1979 | 1 |
| Omron | 86M | 1975 | 1 |
| Sinclair | Cambridge | 1973 | 1 |
| Sinclair | Cambridge Memory Type 1 | 1974 | 1 |
| Sinclair | Cambridge Memory Type 3 | 1974 | 1 |
| Sinclair | Cambridge Memory Type 3 (Red) | 1975 | 1 |
| Sinclair | Cambridge Programmable | 1977 | 1 |
| Sinclair | Cambridge Scientific | 1974 | 1 |
| Sinclair | Cambridge Universal | 1974 | 1 |
| Sinclair | Enterprise | 1977 | 1 |
| Sinclair | Enterprise Programmable | 1977 | 1 |
| Sinclair | Executive | 1972 | 1 |
| Sinclair | Executive Memory | 1973 | 1 |
| Sinclair | Gillette GPA | 1974 | 1 |
| Sinclair | President | 1976 | 1 |
| Sinclair | President Scientific | 1976 | 1 |
| Sinclair | Sinclair Oxford 100 | 1975 | 1 |
| Sinclair | Sinclair Oxford 150 | 1975 | 2 |
| Sinclair | Sinclair Oxford 200 | 1975 | 1 |
| Sinclair | Sinclair Oxford 300 | 1975 | 1 |
| Sinclair | Sinclair Oxford Scientific | 1976 | 1 |
| Sinclair | Sinclair Oxford Universal | 1976 | 2 |
| Sinclair | Sinclair Scientific | 1974 | 1 |
| Sinclair | Sinclair Scientific Programmable | 1975 | 1 |
| Sinclair | Sovereign (Black) | 1977 | 1 |
| Sinclair | Sovereign (Gold) | 1977 | 1 |
| Sinclair | Sovereign (Silver) | 1977 | 1 |
| Texas Instruments | Little Professor | 1988 | 1 |
| Texas Instruments | TI-1000 | 1978 | 1 |
| Texas Instruments | TI-1200 | 1975 | 1 |
| Texas Instruments | TI-1250 | 1975 | 1 |
| Texas Instruments | TI-1450 | 1976 | 1 |
| Texas Instruments | TI-1500 | 1974 | 1 |
| Texas Instruments | TI-1790 DataChron | 1978 | 1 |
| Texas Instruments | TI-2500-II (Datamath) | 1974 | 1 |
| Texas Instruments | TI-2500B | 1972 | 1 |
| Texas Instruments | TI-30 | 1976 | 2 |
| Texas Instruments | TI-51 II | 1976 | 1 |
| Texas Instruments | TI-55 | 1977 | 1 |
| Texas Instruments | TI-57 | 1977 | 2 |
| Texas Instruments | TI-58 | 1977 | 1 |
| Texas Instruments | TI-58C | 1979 | 1 |
| Texas Instruments | TI-59 + PC100C Printer | 1977 | 1 |
| Total Machines |
56 |
