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gptkbp:instance_of
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gptkb:computer
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gptkbp:category
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gptkb:Educational_Institution
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gptkbp:collects
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considered collectible by enthusiasts
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gptkbp:depth
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16 colors
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gptkbp:dimensions
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16 x 16 x 5 inches
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gptkbp:emulation
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available for modern systems
various emulators available
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gptkbp:end_of_life
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1990s
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gptkbp:graphics
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text and graphics modes
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gptkbp:has_documentation
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available online
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gptkbp:has_expansion
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gptkb:3
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gptkbp:historical_significance
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one of the first mass-market personal computers
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gptkbp:home_port
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RS-232
serial and parallel ports
mouse (optional)
video and audio outputs
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https://www.w3.org/2000/01/rdf-schema#label
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Tandy TRS-80 Model 4 D
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gptkbp:influences
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inspired later personal computers
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gptkbp:input_output
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gptkb:musician
full-size keyboard
keyboard and mouse
monitor and printer
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gptkbp:inspiration
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inspired retro computing movements
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gptkbp:is_compatible_with
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TRS-80 Model 4 software
compatible with TRS-80 peripherals
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gptkbp:language
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gptkb:BASIC
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gptkbp:legacy
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influential in early computing
limited support today
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gptkbp:manufacturer
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gptkb:Tandy_Corporation
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gptkbp:market
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gptkb:1983
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gptkbp:market_segment
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home and educational
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gptkbp:monitors
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color monitor
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gptkbp:network
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modem support
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gptkbp:notable_feature
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expandable memory
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gptkbp:notable_users
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early computer enthusiasts
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gptkbp:operating_system
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gptkb:TRS-DOS
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gptkbp:power_consumption
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50 watts
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gptkbp:power_output
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AC adapter
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gptkbp:processor
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gptkb:Zilog_Z80
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gptkbp:project
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restoration projects
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gptkbp:ram
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128 KB
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gptkbp:release_date
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1983-01-01
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gptkbp:release_year
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gptkb:1983
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gptkbp:resolution
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640 x 200 pixels
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gptkbp:sound
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beeper
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gptkbp:storage
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floppy disk
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gptkbp:successor
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gptkb:Tandy_TRS-80_Model_4_P
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gptkbp:supports
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community forums
various programming languages
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gptkbp:user_base
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hobbyists and educators
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gptkbp:user_interface
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command line interface
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gptkbp:user_manual
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gptkb:stock_market_index
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gptkbp:video_output
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RGB output
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gptkbp:weight
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approximately 20 lbs
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gptkbp:bfsParent
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gptkb:Tandy_TRS-80_Model_4
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gptkbp:bfsLayer
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6
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