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gptkbp:instanceOf
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gptkb:personal_computer
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gptkbp:accessible
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gptkb:ZX_Printer
thermal printer
16 KB RAM pack
joystick interface
sound interface
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gptkbp:caseDesigner
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gptkb:Rick_Dickinson
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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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64×48 (block graphics)
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gptkbp:expansion
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16 KB
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gptkbp:externalPorts
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edge connector
TV output
cassette interface
power input
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gptkbp:hasReplica
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gptkb:Timex_Sinclair_1500
gptkb:Timex_Sinclair_1000
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https://www.w3.org/2000/01/rdf-schema#label
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ZX81
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gptkbp:input
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membrane keyboard
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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:notableFor
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compact design
affordable price
influencing home computing in the 1980s
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gptkbp:notableGame
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gptkb:3D_Monster_Maze
gptkb:Flight_Simulation
gptkb:Mazogs
Chess
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gptkbp:numberOfRooms
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over 1.5 million
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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
monochrome TV
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gptkbp:powerSource
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9V DC
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gptkbp:predecessor
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gptkb:ZX80
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gptkbp:priceRange
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£49.95 (kit), £69.95 (assembled)
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gptkbp:primaryUse
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education
games
hobbyist programming
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gptkbp:processor
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gptkb:Zilog_Z80
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gptkbp:RAM
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1 KB
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gptkbp:releaseDate
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1981
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gptkbp:soldIn
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gptkb:Brazil
gptkb:France
gptkb:Germany
gptkb:United_Kingdom
gptkb:United_States
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gptkbp:speed
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3.25 MHz
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gptkbp:storage
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cassette tape
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gptkbp:successor
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gptkb:ZX_Spectrum
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gptkbp:text
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32×24
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gptkbp:weight
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350 g
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gptkbp:bfsParent
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gptkb:ZX_Spectrum
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gptkbp:bfsLayer
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5
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