About: http://webisa.webdatacommons.org/255318006

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	We employed integrated circuits including large-scale integrated circuits, LIS. Then in the 1970s we changed to digital techniques which were employed in DCS, Distributor Control System.
http://www.w3.org/ns/prov#wasQuotedFrom	ethw.org