@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_microcomputer_	skos:broader	isac:system_controller_ .
isac:_device_	skos:broader	isac:system_controller_ .
isac:_error_	skos:broader	isac:system_controller_ .
isac:_means_	skos:broader	isac:system_controller_ .
isac:_processor_	skos:broader	isac:system_controller_ .
isac:present_invention_	skos:broader	isac:system_controller_ .
isac:_microprocessor_	skos:broader	isac:system_controller_ .
isac:_fig_2	skos:broader	isac:system_controller_ .
isac:system_controller_	skos:broader	isac:system_controller_ .
isac:first_controller_	skos:broader	isac:system_controller_ .