Miracle Systems Ltd. were a manufacturer of personal computer peripherals and upgrades, specializing in the Sinclair QL, in the 1980s and early 1990s.
The industrial design was done by Rick Dickinson, who already designed the ZX81 and ZX Spectrum range of products.
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Linus Torvalds has attributed his eventually inventing and developing the Linux kernel in part to his having owned a Sinclair QL in the 1980s.
This project was later cancelled, however, SuperBASIC was subsequently included in the ROM firmware of the Sinclair QL personal computer (launched in January 1984), also serving as the command interpreter for the QL's Qdos operating system.
Upton Sinclair | Sinclair Lewis | Sinclair | Iain Sinclair | Sinclair Broadcast Group | Keith Sinclair | John Sinclair | Clive Sinclair | Christine Sinclair | Sinclair Research | Your Sinclair | Timex Sinclair 2068 | Stephen Sinclair | Sinclair QL | Sinclair QDOS | John Sinclair, 1st Baron Pentland | Cameron Sinclair | Archibald Sinclair, 1st Viscount Thurso | Sinclair Weeks | Patrick Sinclair | Murray Sinclair | Mary Craig Sinclair | Lord Sinclair | John Sinclair (poet) | John Gordon Sinclair | Jess Sinclair | Jeffrey Sinclair | Ian Sinclair | Frank Sinclair | Clan Sinclair |
The Sinclair QL and 128k ZX Spectrum home computers used type 630W connectors for their serial ports (on the Spectrum 128 and +2, MIDI signals could also be sent from the port).