About: http://webisa.webdatacommons.org/430233471

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Since conventional display devices are mostly of the CRT type, the clock signal is not usually supplied as part of the graphic controller output.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com