Sinclair QL
The Sinclair QL (for Quantum Leap) is a personal computer launched by Sinclair Research in 1984, as an upper-end counterpart to the ZX Spectrum.
| Type | Personal computer |
|---|---|
| Release date | 12 January 1984 |
| Introductory price | £399 (equivalent to £1,364 in 2021) |
| Discontinued | April 1986 |
| Units sold | 150,000 |
| Operating system | Sinclair QDOS, SuperBASIC |
| CPU | 68008 @ 7.5 MHz |
| Memory | 128 KB (896 KB max.) |
| Storage | 2× Microdrive |
| Display | PAL TV or RGB Monitor 256×256 (8 colours) 512×256 (4 colours) |
| Graphics | ZX8301 |
| Sound | Intel 8049 |
| Connectivity | expansion slot, ROM cartridge socket, dual RS-232 ports, proprietary QLAN local area network ports, dual joystick ports, external Microdrive bus |
| Predecessor | ZX Spectrum |
| Successor | Sinclair PC200 |
The QL was aimed at the serious home user and professional and executive users markets from small to medium-sized businesses and higher educational establishments, but failed to achieve commercial success.
While the ZX Spectrum has an 8-bit Zilog Z80 as the CPU, the QL uses a Motorola 68008. The 68008 is a member of the Motorola 68000 family with 32-bit internal data registers, but an 8-bit external data bus.
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