About: http://webisa.webdatacommons.org/325070177

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	However, the driving clock frequency of a PIC is as low as 10 to 20 MHz, resulting in a drawback such as low accuracy in the conventional pulse counting system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com