QDOS (for the QL) Technical Notes

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Technical Nottes for version 1.03 written by Tony Tebby -June 1984

QDOS is the multitasking operating system found on the Sinclair QL personal computer and its clones. It was designed by Tony Tebby whilst working at Sinclair Research, as an in-house alternative to 68K/OS, which was later cancelled by Sinclair, but released by original authors GST Computer Systems.

QDOS was implemented in Motorola 68000 assembly language, and on the QL, resided in 48 kB of ROM, consisting of either three 16 kB EPROM chips or one 32 kB and one 16 kB ROM chip. These ROMs also held the SuperBASIC interpreter, an advanced variant of BASIC with structured programming additions. This also acted as the QDOS command line interprete

Reference Number :

Date Published : 12th June 1984

Manufacturer : Sinclair Research Ltd

Platform : Sinclair QL

Format : Ringbound Folder

This exhibit has a reference ID of CH16257. Please quote this reference ID in any communication with the Centre for Computing History.

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