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gptkbp:instanceOf
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gptkb:personal_computer
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gptkbp:countryOfOrigin
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gptkb:United_Kingdom
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gptkbp:dimensions
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167 mm × 175 mm × 40 mm
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gptkbp:displayType
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monochrome
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gptkbp:expansion
|
up to 16 KB
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|
https://www.w3.org/2000/01/rdf-schema#label
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Sinclair ZX81
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gptkbp:introduced
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1981
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gptkbp:keyboard_type
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membrane keyboard
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gptkbp:main_designer
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gptkb:Clive_Sinclair
gptkb:Rick_Dickinson
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gptkbp:manufacturer
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gptkb:Sinclair_Research
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gptkbp:marketedAs
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gptkb:Timex_Sinclair_1000
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gptkbp:notable_for
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compact design
affordable home computing
influencing early 1980s home computer market
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gptkbp:operatingSystem
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gptkb:Sinclair_BASIC
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gptkbp:output
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RF modulator
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gptkbp:powerSource
|
9V DC external adapter
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gptkbp:predecessor
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gptkb:Sinclair_ZX80
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gptkbp:priceRange
|
£69.95 (kit), £49.95 (assembled)
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gptkbp:processor
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gptkb:Zilog_Z80
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gptkbp:RAM
|
1 KB
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gptkbp:speed
|
3.25 MHz
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gptkbp:storage
|
cassette tape
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gptkbp:successor
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gptkb:Sinclair_ZX_Spectrum
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gptkbp:units_sold
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over 1.5 million
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gptkbp:weight
|
350 g
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gptkbp:bfsParent
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gptkb:Sinclair
gptkb:Clive_Sinclair
gptkb:Sinclair_BASIC
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gptkbp:bfsLayer
|
6
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