About: http://webisa.webdatacommons.org/55948544

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	Such external power supplies therefore contribute substantial additional weight that the user of the computer must carry with him or her to permit battery charging and/or operation from an electrical socket or other power source.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr