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Sinclair QL
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{{Short description|Personal computer by Sinclair Research}} {{Infobox information appliance | name = Sinclair QL | title = | aka = | logo = | image = Sinclair QL Top.jpg | caption = | developer = | manufacturer = | family = | type = [[Personal computer]] | generation = | releasedate = {{Start date and age|1984|1|12|df=y}} | lifespan = | price = £399 ({{Inflation|UK|399|1984|fmt=eq|cursign=£}}) | discontinued = {{End date|1986|04}} | unitssold = 150,000<ref>{{cite web |title=QL, what? Never heard of the QL... |url=http://sinclairql.net/what.html |access-date=2020-12-11}}</ref> | unitsshipped = | media = | os = [[Sinclair QDOS]], [[SuperBASIC]] | power = | soc = | cpu = [[Motorola 68008|68008]] | memory = 128 [[kilobyte|KB]]<ref>1 KB = 1024 [[byte|B]]</ref> (896 KB max.) | storage = 2× [[ZX Microdrive|Microdrive]] | memory card = | display = [[PAL]] TV or RGB Monitor<br />{{resx|256×256}} (8 colours)<br />{{resx|512×256}} (4 colours) | graphics = [[ZX8301]] | sound = [[Intel 8049]] | input = | controllers = | camera = | touchpad = | connectivity = expansion slot, ROM cartridge socket, dual [[RS-232]] ports, proprietary QLAN [[local area network]] ports, dual [[joystick]] ports, external [[ZX Microdrive|Microdrive]] bus | platform = | service = | dimensions = | weight = | topgame = | compatibility = | predecessor = [[ZX Spectrum]] | successor = [[Sinclair PC200]] | related = | website = <!--{{URL|example.org}}--> | CPUspeed = 7.5 MHz }} 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]].<ref>{{Cite web |title=Sinclair QL - Computer |url=http://www.computinghistory.org.uk/det/655/Sinclair-QL/ |access-date=2022-11-22 |website=The Centre for Computing History}}</ref><ref>{{Cite web |last=Smith |first=Tony |title=Sinclair’s 1984 big shot at business: The QL is 30 years old |url=https://www.theregister.com/2014/01/12/archaeologic_sinclair_ql/ |access-date=2023-08-02 |website=www.theregister.com |language=en}}</ref><ref name=":0">{{Cite web |last=Claaßen |first=André |date=2015-04-18 |title=Sinclair QL — The first real Computer |url=https://medium.com/@AndreClaassen/sinclair-ql-the-first-real-computer-2bff6046ea28 |access-date=2023-08-02 |website=Medium |language=en}}</ref> The QL was the last desktop [[microcomputer]] 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.<ref>{{Cite web |last=Smith |first=Tony |date=2014 |title=Sinclair's 1984 big shot at business: The QL is 30 years old |url=https://www.theregister.com/2014/01/12/archaeologic_sinclair_ql/ |access-date=2022-11-22 |website=www.theregister.com |language=en}}</ref> While the ZX Spectrum has an 8-bit [[Zilog Z80]] as the CPU, the QL uses a [[Motorola 68008]].<ref>{{Cite web |title=Sinclair QL microcomputer |url=https://www.computerhistory.org/revolution/personal-computers/17/298/1180 |access-date=2022-11-22 |website=Computer History Museum}}</ref> The 68008 is a member of the [[Motorola 68000]] family with [[32-bit computing|32-bit]] internal data registers, but an [[8-bit computing|8-bit]] external [[Bus (computing)|data bus]] characteristic of microcomputers.<ref name=":0" />
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