QDOS

QDOS, the "Quick and Dirty Operating System," (not to be confused with Sinclair's QDOS for the Sinclair QL computer, which shared the same name) was a simple 16-bit operating system originally written in just four months by Tim Paterson in 1980 for an Intel 8086-based computer kit sold by Seattle Computer Products (SCP), which became famous as a part of one of the greatest legends in computer folklore.

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QDOS was mostly a 16-bit clone of the Digital Research's CP/M operating system, the most popular 8-bit operating system of the 1970s and early 1980s. The FAT file system was the main innovation of QDOS over CP/M

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Sinclair: __NOTOC__...

QDOS: QDOS, the "Quick and Dirty Operating System," (not to be confused with Sinclair's QDOS for the Sinclair QL computer, which shared the same name) was a simple 16-bit operating system originally written in just four months by Tim Paterson in 1980 for an Intel 8086-based computer kit sold by Seattle Co...

Sinclair QL: The Sinclair QL, QL for Quantum Leap, was a personal computer system launched by Sinclair Research Ltd in January, 1984. A successor to the ZX Spectrum, the QL was designed with the hobbyist and small business market in mind....